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Vulnerability Details :

CVE-2025-47917

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-20 Jul, 2025 | 00:00
Updated At-03 Nov, 2025 | 20:04
Rejected At-
Credits

Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:20 Jul, 2025 | 00:00
Updated At:03 Nov, 2025 | 20:04
Rejected At:
▼CVE Numbering Authority (CNA)

Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).

Affected Products
Vendor
Mbed
Product
mbedtls
Default Status
unaffected
Versions
Affected
  • From 0 before 3.6.4 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-416CWE-416 Use After Free
Type: CWE
CWE ID: CWE-416
Description: CWE-416 Use After Free
Metrics
VersionBase scoreBase severityVector
3.18.9HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
Version: 3.1
Base score: 8.9
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
N/A
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.md
N/A
Hyperlink: https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
Resource: N/A
Hyperlink: https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.md
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://lists.debian.org/debian-lts-announce/2025/08/msg00025.html
N/A
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/08/msg00025.html
Resource: N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:20 Jul, 2025 | 19:15
Updated At:03 Nov, 2025 | 20:19

Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.18.9HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.9
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches

Arm Limited
arm
>>mbed_tls>>Versions before 3.6.4(exclusive)
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-416Secondarycve@mitre.org
CWE ID: CWE-416
Type: Secondary
Source: cve@mitre.org
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.mdcve@mitre.org
Mitigation
Third Party Advisory
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/cve@mitre.org
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/08/msg00013.htmlaf854a3a-2127-422b-91ae-364da2661108
N/A
https://lists.debian.org/debian-lts-announce/2025/08/msg00025.htmlaf854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.md
Source: cve@mitre.org
Resource:
Mitigation
Third Party Advisory
Hyperlink: https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
Source: cve@mitre.org
Resource:
Vendor Advisory
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/08/msg00013.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://lists.debian.org/debian-lts-announce/2025/08/msg00025.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A

Change History

0
Information is not available yet

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CWE ID-CWE-416
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CWE ID-CWE-416
Use After Free
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Matching Score-4
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CVSS Score-9.8||CRITICAL
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Matching Score-4
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CVSS Score-9.8||CRITICAL
EPSS-0.24% / 46.87%
||
7 Day CHG~0.00%
Published-30 Jun, 2021 | 20:48
Updated-03 Aug, 2024 | 18:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

There is a Memory Buffer Improper Operation Limit Vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may cause code to execute.

Action-Not Available
Vendor-n/aHuawei Technologies Co., Ltd.
Product-magic_uiemuiEMUI;Magic UI
CWE ID-CWE-416
Use After Free
CVE-2026-45657
Matching Score-4
Assigner-Microsoft Corporation
ShareView Details
Matching Score-4
Assigner-Microsoft Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.14% / 33.65%
||
7 Day CHG~0.00%
Published-09 Jun, 2026 | 17:04
Updated-10 Jun, 2026 | 17:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Windows Kernel Remote Code Execution Vulnerability

Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.

Action-Not Available
Vendor-Microsoft Corporation
Product-Windows Server 2025 (Server Core installation)Windows 11 Version 24H2Windows Server 2025Windows 11 version 23H2Windows 11 Version 25H2Windows 11 version 26H1Windows 11 Version 23H2Windows Server 2022
CWE ID-CWE-122
Heap-based Buffer Overflow
CWE ID-CWE-416
Use After Free
CVE-2026-43378
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.03% / 9.76%
||
7 Day CHG~0.00%
Published-08 May, 2026 | 14:21
Updated-20 May, 2026 | 17:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
smb: server: fix use-after-free in smb2_open()

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2021-22390
Matching Score-4
Assigner-Huawei Technologies
ShareView Details
Matching Score-4
Assigner-Huawei Technologies
CVSS Score-9.8||CRITICAL
EPSS-0.24% / 46.87%
||
7 Day CHG~0.00%
Published-02 Aug, 2021 | 16:44
Updated-03 Aug, 2024 | 18:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

There is a Memory Buffer Improper Operation Limit Vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may cause certain codes to be executed.

Action-Not Available
Vendor-Huawei Technologies Co., Ltd.
Product-magic_uiemuiMagic UIEMUI
CWE ID-CWE-416
Use After Free
CVE-2026-43376
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.07% / 20.79%
||
7 Day CHG+0.01%
Published-08 May, 2026 | 14:21
Updated-23 May, 2026 | 16:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using call_rcu() for oplock_info ksmbd currently frees oplock_info immediately using kfree(), even though it is accessed under RCU read-side critical sections in places like opinfo_get() and proc_show_files(). Since there is no RCU grace period delay between nullifying the pointer and freeing the memory, a reader can still access oplock_info structure after it has been freed. This can leads to a use-after-free especially in opinfo_get() where atomic_inc_not_zero() is called on already freed memory. Fix this by switching to deferred freeing using call_rcu().

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2026-43379
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.07% / 20.79%
||
7 Day CHG+0.01%
Published-08 May, 2026 | 14:21
Updated-23 May, 2026 | 16:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a race condition where the memory could be freed by a concurrent writer between the unlock and the subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2026-43402
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.06% / 18.57%
||
7 Day CHG+0.01%
Published-08 May, 2026 | 14:21
Updated-21 May, 2026 | 19:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
kthread: consolidate kthread exit paths to prevent use-after-free

In the Linux kernel, the following vulnerability has been resolved: kthread: consolidate kthread exit paths to prevent use-after-free Guillaume reported crashes via corrupted RCU callback function pointers during KUnit testing. The crash was traced back to the pidfs rhashtable conversion which replaced the 24-byte rb_node with an 8-byte rhash_head in struct pid, shrinking it from 160 to 144 bytes. struct kthread (without CONFIG_BLK_CGROUP) is also 144 bytes. With CONFIG_SLAB_MERGE_DEFAULT and SLAB_HWCACHE_ALIGN both round up to 192 bytes and share the same slab cache. struct pid.rcu.func and struct kthread.affinity_node both sit at offset 0x78. When a kthread exits via make_task_dead() it bypasses kthread_exit() and misses the affinity_node cleanup. free_kthread_struct() frees the memory while the node is still linked into the global kthread_affinity_list. A subsequent list_del() by another kthread writes through dangling list pointers into the freed and reused memory, corrupting the pid's rcu.func pointer. Instead of patching free_kthread_struct() to handle the missed cleanup, consolidate all kthread exit paths. Turn kthread_exit() into a macro that calls do_exit() and add kthread_do_exit() which is called from do_exit() for any task with PF_KTHREAD set. This guarantees that kthread-specific cleanup always happens regardless of the exit path - make_task_dead(), direct do_exit(), or kthread_exit(). Replace __to_kthread() with a new tsk_is_kthread() accessor in the public header. Export do_exit() since module code using the kthread_exit() macro now needs it directly.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2019-18903
Matching Score-4
Assigner-SUSE
ShareView Details
Matching Score-4
Assigner-SUSE
CVSS Score-7.5||HIGH
EPSS-2.82% / 86.52%
||
7 Day CHG~0.00%
Published-02 Mar, 2020 | 16:45
Updated-17 Sep, 2024 | 01:00
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
wicked: Use-after-free when receiving invalid DHCP6 IA_PD option

A Use After Free vulnerability in wicked of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15; openSUSE Leap 15.1, Factory allows remote attackers to cause DoS or potentially code execution. This issue affects: SUSE Linux Enterprise Server 12 wicked versions prior to 0.6.60-2.18.1. SUSE Linux Enterprise Server 15 wicked versions prior to 0.6.60-28.26.1. openSUSE Leap 15.1 wicked versions prior to 0.6.60-lp151.2.9.1. openSUSE Factory wicked versions prior to 0.6.62.

Action-Not Available
Vendor-openSUSESUSE
Product-linux_enterprise_serverleapFactoryLeap 15.1SUSE Linux Enterprise Server 15SUSE Linux Enterprise Server 12
CWE ID-CWE-416
Use After Free
CVE-2024-24793
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-8.1||HIGH
EPSS-0.45% / 64.24%
||
7 Day CHG~0.00%
Published-20 Feb, 2024 | 10:37
Updated-04 Nov, 2025 | 19:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libdicom 1.0.5. A specially crafted DICOM file can cause premature freeing of memory that is used later. To trigger this vulnerability, an attacker would need to induce the vulnerable application to process a malicious DICOM image.The Use-After-Free happens in the `parse_meta_element_create()` parsing the elements in the File Meta Information header.

Action-Not Available
Vendor-nihImaging Data Commons
Product-libdicomlibdicom
CWE ID-CWE-416
Use After Free
CVE-2019-16138
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.20% / 84.85%
||
7 Day CHG~0.00%
Published-09 Sep, 2019 | 11:49
Updated-05 Aug, 2024 | 01:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in the image crate before 0.21.3 for Rust, affecting the HDR image format decoder. Vec::set_len is called on an uninitialized vector, leading to a use-after-free and arbitrary code execution.

Action-Not Available
Vendor-image-rsn/a
Product-imagen/a
CWE ID-CWE-416
Use After Free
CVE-2021-21708
Matching Score-4
Assigner-PHP Group
ShareView Details
Matching Score-4
Assigner-PHP Group
CVSS Score-8.2||HIGH
EPSS-0.22% / 44.59%
||
7 Day CHG~0.00%
Published-27 Feb, 2022 | 08:00
Updated-17 Sep, 2024 | 03:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
UAF due to php_filter_float() failing

In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.

Action-Not Available
Vendor-The PHP Group
Product-phpPHP
CWE ID-CWE-416
Use After Free
CVE-2024-24794
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-8.1||HIGH
EPSS-0.45% / 64.24%
||
7 Day CHG~0.00%
Published-20 Feb, 2024 | 10:37
Updated-04 Nov, 2025 | 19:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libdicom 1.0.5. A specially crafted DICOM file can cause premature freeing of memory that is used later. To trigger this vulnerability, an attacker would need to induce the vulnerable application to process a malicious DICOM image.The Use-After-Free happens in the `parse_meta_sequence_end()` parsing the Sequence Value Represenations.

Action-Not Available
Vendor-nihImaging Data Commonsimaging_data_commons
Product-libdicomlibdicomlibdicom
CWE ID-CWE-416
Use After Free
CVE-2024-24189
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.58% / 69.45%
||
7 Day CHG~0.00%
Published-07 Feb, 2024 | 00:00
Updated-20 Jun, 2025 | 21:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Jsish v3.5.0 (commit 42c694c) was discovered to contain a use-after-free via the SplitChar at ./src/jsiUtils.c.

Action-Not Available
Vendor-jsishn/a
Product-jsishn/a
CWE ID-CWE-416
Use After Free
CVE-2024-25110
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.74% / 73.41%
||
7 Day CHG~0.00%
Published-12 Feb, 2024 | 19:58
Updated-22 Nov, 2024 | 14:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Azure IoT Platform Device SDK Remote Code Execution Vulnerability

The UAMQP is a general purpose C library for AMQP 1.0. During a call to open_get_offered_capabilities, a memory allocation may fail causing a use-after-free issue and if a client called it during connection communication it may cause a remote code execution. Users are advised to update the submodule with commit `30865c9c`. There are no known workarounds for this vulnerability.

Action-Not Available
Vendor-AzureMicrosoft Corporation
Product-azure_uamqpazure-uamqp-c
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CWE ID-CWE-416
Use After Free
CVE-2024-2410
Matching Score-4
Assigner-Google LLC
ShareView Details
Matching Score-4
Assigner-Google LLC
CVSS Score-7.6||HIGH
EPSS-0.05% / 16.02%
||
7 Day CHG~0.00%
Published-03 May, 2024 | 12:58
Updated-22 Jul, 2025 | 21:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use after free in C++ protobuf

The JsonToBinaryStream() function is part of the protocol buffers C++ implementation and is used to parse JSON from a stream. If the input is broken up into separate chunks in a certain way, the parser will attempt to read bytes from a chunk that has already been freed. 

Action-Not Available
Vendor-protocolbuffersGoogle LLC
Product-protobufprotobufprotobuf
CWE ID-CWE-416
Use After Free
CVE-2026-33278
Matching Score-4
Assigner-NLnet Labs
ShareView Details
Matching Score-4
Assigner-NLnet Labs
CVSS Score-9.1||CRITICAL
EPSS-0.32% / 55.72%
||
7 Day CHG~0.00%
Published-20 May, 2026 | 09:18
Updated-20 May, 2026 | 22:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Possible arbitrary code execution during DNSSEC validation

NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and erroneously overwriting a destination pointer. An adversary can exploit the vulnerability by controlling a malicious signed zone and querying a vulnerable Unbound. When DS sub-queries need to suspend validation due to NSEC3 computational budget exhaustion (introduced in Unbound 1.19.1), Unbound deep-copies response messages to preserve them across memory region teardown. A struct-assignment bug overwrites the destination's pointer with the source's pointer. After the sub-query region is freed, the resumed validator dereferences this dangling pointer, triggering a crash or potentially enabling arbitrary code execution. Unbound 1.25.1 contains a patch with a fix to preserve the correct pointer when deep copying the data structure.

Action-Not Available
Vendor-nlnetlabsNLnet Labs
Product-unboundUnbound
CWE ID-CWE-416
Use After Free
CWE ID-CWE-672
Operation on a Resource after Expiration or Release
CVE-2026-31589
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.06% / 19.92%
||
7 Day CHG~0.00%
Published-24 Apr, 2026 | 14:42
Updated-11 May, 2026 | 22:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
mm: call ->free_folio() directly in folio_unmap_invalidate()

In the Linux kernel, the following vulnerability has been resolved: mm: call ->free_folio() directly in folio_unmap_invalidate() We can only call filemap_free_folio() if we have a reference to (or hold a lock on) the mapping. Otherwise, we've already removed the folio from the mapping so it no longer pins the mapping and the mapping can be removed, causing a use-after-free when accessing mapping->a_ops. Follow the same pattern as __remove_mapping() and load the free_folio function pointer before dropping the lock on the mapping. That lets us make filemap_free_folio() static as this was the only caller outside filemap.c.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2026-31533
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.04% / 14.20%
||
7 Day CHG~0.00%
Published-23 Apr, 2026 | 15:11
Updated-23 May, 2026 | 16:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption

In the Linux kernel, the following vulnerability has been resolved: net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption The -EBUSY handling in tls_do_encryption(), introduced by commit 859054147318 ("net: tls: handle backlogging of crypto requests"), has a use-after-free due to double cleanup of encrypt_pending and the scatterlist entry. When crypto_aead_encrypt() returns -EBUSY, the request is enqueued to the cryptd backlog and the async callback tls_encrypt_done() will be invoked upon completion. That callback unconditionally restores the scatterlist entry (sge->offset, sge->length) and decrements ctx->encrypt_pending. However, if tls_encrypt_async_wait() returns an error, the synchronous error path in tls_do_encryption() performs the same cleanup again, double-decrementing encrypt_pending and double-restoring the scatterlist. The double-decrement corrupts the encrypt_pending sentinel (initialized to 1), making tls_encrypt_async_wait() permanently skip the wait for pending async callbacks. A subsequent sendmsg can then free the tls_rec via bpf_exec_tx_verdict() while a cryptd callback is still pending, resulting in a use-after-free when the callback fires on the freed record. Fix this by skipping the synchronous cleanup when the -EBUSY async wait returns an error, since the callback has already handled encrypt_pending and sge restoration.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2026-31501
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.06% / 19.53%
||
7 Day CHG~0.00%
Published-22 Apr, 2026 | 13:54
Updated-11 May, 2026 | 22:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path

In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path cppi5_hdesc_get_psdata() returns a pointer into the CPPI descriptor. In both emac_rx_packet() and emac_rx_packet_zc(), the descriptor is freed via k3_cppi_desc_pool_free() before the psdata pointer is used by emac_rx_timestamp(), which dereferences psdata[0] and psdata[1]. This constitutes a use-after-free on every received packet that goes through the timestamp path. Defer the descriptor free until after all accesses through the psdata pointer are complete. For emac_rx_packet(), move the free into the requeue label so both early-exit and success paths free the descriptor after all accesses are done. For emac_rx_packet_zc(), move the free to the end of the loop body after emac_dispatch_skb_zc() (which calls emac_rx_timestamp()) has returned.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2026-31718
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.07% / 20.79%
||
7 Day CHG~0.00%
Published-01 May, 2026 | 13:56
Updated-23 May, 2026 | 16:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger When a durable file handle survives session disconnect (TCP close without SMB2_LOGOFF), session_fd_check() sets fp->conn = NULL to preserve the handle for later reconnection. However, it did not clean up the byte-range locks on fp->lock_list. Later, when the durable scavenger thread times out and calls __ksmbd_close_fd(NULL, fp), the lock cleanup loop did: spin_lock(&fp->conn->llist_lock); This caused a slab use-after-free because fp->conn was NULL and the original connection object had already been freed by ksmbd_tcp_disconnect(). The root cause is asymmetric cleanup: lock entries (smb_lock->clist) were left dangling on the freed conn->lock_list while fp->conn was nulled out. To fix this issue properly, we need to handle the lifetime of smb_lock->clist across three paths: - Safely skip clist deletion when list is empty and fp->conn is NULL. - Remove the lock from the old connection's lock_list in session_fd_check() - Re-add the lock to the new connection's lock_list in ksmbd_reopen_durable_fd().

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2024-22088
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.22% / 45.03%
||
7 Day CHG~0.00%
Published-05 Jan, 2024 | 00:00
Updated-04 Sep, 2024 | 21:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Lotos WebServer through 0.1.1 (commit 3eb36cc) has a use-after-free in buffer_avail() at buffer.h via a long URI, because realloc is mishandled.

Action-Not Available
Vendor-chendotjsn/a
Product-lotos_webservern/a
CWE ID-CWE-416
Use After Free
CVE-2026-29167
Matching Score-4
Assigner-Apache Software Foundation
ShareView Details
Matching Score-4
Assigner-Apache Software Foundation
CVSS Score-9.8||CRITICAL
EPSS-0.11% / 29.62%
||
7 Day CHG~0.00%
Published-08 Jun, 2026 | 15:07
Updated-09 Jun, 2026 | 16:29
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache HTTP Server: mod_ldap per-dir use-after-free

Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-http_serverApache HTTP Server
CWE ID-CWE-416
Use After Free
CVE-2024-21334
Matching Score-4
Assigner-Microsoft Corporation
ShareView Details
Matching Score-4
Assigner-Microsoft Corporation
CVSS Score-9.8||CRITICAL
EPSS-9.14% / 92.89%
||
7 Day CHG~0.00%
Published-12 Mar, 2024 | 16:57
Updated-03 May, 2025 | 00:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Action-Not Available
Vendor-Microsoft Corporation
Product-open_management_infrastructuresystem_center_operations_managerOpen Management InfrastructureSystem Center Operations Manager (SCOM) 2022System Center Operations Manager (SCOM) 2019
CWE ID-CWE-416
Use After Free
CVE-2021-1976
Matching Score-4
Assigner-Qualcomm, Inc.
ShareView Details
Matching Score-4
Assigner-Qualcomm, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.39% / 60.39%
||
7 Day CHG~0.00%
Published-17 Sep, 2021 | 07:05
Updated-03 Aug, 2024 | 16:25
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use after free can occur due to improper validation of P2P device address in PD Request frame in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Action-Not Available
Vendor-Qualcomm Technologies, Inc.
Product-qca9377_firmwarefsm10055sm7250mdm9640_firmwaresm6250p_firmwaresa6150p_firmwareqcs610ipq4028_firmwareqcn5550qca8337ar9380ipq8173_firmwareqca9561_firmwareqcn5124qca4024_firmwarewcn3950_firmwareipq8078aipq5028_firmwaresa8150p_firmwareqcs2290qca6595au_firmwaresa6155qca6335msm8917qcn5064sd_455_firmwarecsra6620_firmwareqcs605_firmwaresd_675_firmwarecsra6640_firmwareqcs6125_firmwareqca9987_firmwaresd632sa415mwcn3998wcd9371_firmwarewcn3950qcn6024_firmwaresd720gsm4125mdm9206_firmwareipq8076amdm9628wcn3660bsd450_firmwaresd460_firmwareqca6428qca6574au_firmwareqcn5164_firmwareipq8071wcd9375_firmwareqca8081_firmwarewcn3998_firmwaresa6155_firmwaresdx12_firmwaremsm8909wapq8009w_firmwareqca6420apq8053_firmwaresdx20mqca6438_firmwareqca9986ipq8070_firmwareqca9367_firmwareipq8065ipq8078a_firmwarewcn3999qrb5165_firmwareipq5028qca7500ipq8072_firmwareipq4029_firmwareqcs6125sa8155_firmwareipq6010sd662_firmwareipq8068qcs405qca6430wcd9340sdm830_firmwaresd765gqualcomm215_firmwarefsm10056_firmwareqca6436wcn6851qcn3018_firmwaresa6155pqcs603_firmwaremdm9250_firmwarewcn3660_firmwareqca9888_firmwareqcn6122ipq8068_firmwareqca6696_firmwarewcd9371sd870_firmwaresd750gqca9988_firmwareqcn5154_firmwarewcn3910_firmwaresa8150par7420_firmwarewsa8830_firmwareqca9992_firmwaresd865_5g_firmwaresd855_firmwarewcn3988qca6438sa8195p_firmwareqcn5121qcn5022_firmwarewcn6750_firmwareqca9898sd450ipq4028wcn3610mdm9640qca6428_firmwareipq5018_firmwareqca9985_firmwarewcn3991ipq4018_firmwareqca8337_firmwarewcd9380_firmwareipq8072aqca7500_firmwareqca9980_firmwaresdm429wwcd9330msm8996au_firmwareipq8076a_firmwareqca7550_firmwareipq8078qca6564ausdx55m_firmwareipq8173wcn6856_firmwareqcn5164qca9558sd670_firmwareqca6574sd632_firmwarecsr8811_firmwareqca7520_firmwarewcd9380qualcomm215qcn5054_firmwareqcs410qcn5024sd690_5g_firmwareipq4019_firmwaresdx50m_firmwaresdx24_firmwareqca8072_firmwareqca9985qcn9012_firmwareqca6174qca6430_firmwaresd439_firmwareqcn5052_firmwareqca6335_firmwareipq6018_firmwareqcs605wcd9340_firmwarewsa8815wcn6850pmp8074_firmwarewcn3910qca6320mdm9650_firmwareqca9986_firmwareqca6426_firmwarewcn3660b_firmwarewcn3680qca9984ipq6028ipq8064sd835pmp8074qcn9024sd730qcn5550_firmwarewcd9330_firmwaresdx55mipq8064_firmwarewcn6740_firmwaremsm8953qcn5064_firmwaresd678_firmwareapq8064au_firmwarear8031_firmwarewcn3680_firmwareipq8078_firmwareqcn5054qrb5165wcn6851_firmwareqcs603ipq8070qca9896qcn5502qca9994qca9887_firmwareqca9980sd670qcn9024_firmwareipq8174_firmwareapq8009wsd_636_firmwareqca6564a_firmwareqca9880qcm4290_firmwaresd480sd870qcn5121_firmwaresd210_firmwareqcs610_firmwaresa6145pipq6018qcn3018qca9886_firmwaresdxr1ar8031apq8096auqca6595_firmwareqcs405_firmwaresa8145psdm630_firmwareqca6391_firmwareqca4024wcd9370_firmwaresd780g_firmwaresdx55sd888_firmwareapq8053qcn5021_firmwarecsra6640sa8155psd675sd439qca9531_firmwarewcn3660ar8035_firmwareqcm2290qcn5024_firmwarewcn3991_firmwaremdm9150_firmwareqcn5500wsa8830qca9561sd678qcn9070sa8145p_firmwareqca7520qcs2290_firmwarefsm10056sm7250_firmwarecsrb31024qca9563_firmwaremdm9628_firmwaremdm9650sd_636csra6620fsm10055_firmwareqca9987qcn9072qca9880_firmwareqca9992qcs4290mdm9250sd765g_firmwareqca6420_firmwareipq8069_firmwareapq8009_firmwareqca6390_firmwaresd690_5gipq6000qca6174_firmwaresd730_firmwarewcd9370sd675_firmwareipq8072qcn5152_firmwareqca6564qca6426qca6584au_firmwareqcn9000_firmwareqca9984_firmwareqca9377ipq5018sdw2500_firmwarewcd9385_firmwaresdxr2_5g_firmwarewcn3615_firmwareqca9563ipq8074asd662qcn5124_firmwareqca9982sa8155qca6320_firmwarewcn3680b_firmwareqcn5122_firmwaresdx55_firmwarewcn3615qcn6023_firmwareqca6595auwcn3999_firmwarewcn3610_firmwareqca6436_firmwareipq5010qca6564au_firmwareqca6584ausd778gsa6155p_firmwareqca6310ipq8174sd429sa515m_firmwareqca9990sdxr2_5gqcn5052qca9367sdm630mdm9607_firmwaresa415m_firmwarewcn3988_firmwareqcn9074sd205sd429_firmwaresa6145p_firmwaresd778g_firmwaresm6250sa8195papq8017_firmwarewsa8810_firmwareqca6694qca7550sd765_firmwareqca8081qca9982_firmwareqcn6023ipq8071aqca6174a_firmwareipq8071a_firmwareqcs4290_firmwarewcd9385qca6390qca9898_firmwaresd750g_firmwareaqt1000wcd9375ar8035sm6250_firmwarecsr8811apq8064auipq4019qca6694_firmwaremsm8953_firmwareqcn9100_firmwaremsm8917_firmwaresd210wcn3620_firmwareipq5010_firmwareipq8074a_firmwaresd888_5g_firmwaresdx20_firmwarewsa8815_firmwarewcn6850_firmwarewsa8835_firmwarewcn3620apq8017qcx315qca6564aqca9988qcm6125_firmwareqca9882qca8072qcm2290_firmwareqcn9000sd_675sd780gsd865_5gqca6595ar9380_firmwaresdx24qcn9012sd888qca9558_firmwareqca9896_firmwaremsm8909w_firmwareipq8065_firmwareqcx315_firmwareqcn6122_firmwaremsm8996ausd665_firmwaresdm429w_firmwarewsa8835sd888_5gsm6250pqcn5154qca8075_firmwareipq4018qca6574aipq6005_firmwaremdm9206qca9889qca6174aqca9888qca6310_firmwaresm7325ipq8074qca9994_firmwarewcn6750ipq8070a_firmwareipq8076_firmwaresa515mqca6574_firmwareqca9886qcn5502_firmwarear7420sd855sm4125_firmwaresd665ipq8076sd765qca9887qca6574a_firmwareqcn5021ipq8069qcn5152sd768g_firmwareapq8009sd460qca6391sdxr1_firmwareipq6005aqt1000_firmwareqcn9100mdm9626qcm4290csrb31024_firmwaresdx50mqca9882_firmwareqcn9070_firmwaresdx20sd480_firmwareipq6028_firmwareipq8072a_firmwaresd_455mdm9626_firmwareqca9531ipq8074_firmwareqca6574auqca9889_firmwaresa8155p_firmwaremdm9607qcn5122sd205_firmwaresdx20m_firmwareqcm6125wsa8810qcn5500_firmwaremdm9150wcn6856qcn5022wcn3680bsd835_firmwareqca6564_firmwaresd768gipq6010_firmwarewcn6740qca6696sd845_firmwaresdw2500sa6150pqca8075qcn9022_firmwareapq8096au_firmwareqcn6024qcn9022sd845qca9990_firmwareipq8070aqcn9072_firmwaresdm830ipq6000_firmwaresd720g_firmwaresdx12ipq8071_firmwareqcs410_firmwareqcn9074_firmwareipq4029sm7325_firmwareSnapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
CWE ID-CWE-416
Use After Free
CVE-2026-2758
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.07% / 21.52%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:32
Updated-15 Apr, 2026 | 15:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript: GC component

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2786
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.02% / 5.81%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-10 May, 2026 | 13:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript Engine component

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxFirefoxThunderbird
CWE ID-CWE-416
Use After Free
CVE-2026-2765
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.02% / 7.14%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript Engine component

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2766
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.02% / 7.14%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript Engine: JIT component

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2795
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.05% / 17.16%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript: GC component

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2797
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.02% / 5.40%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the JavaScript: GC component

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2787
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.02% / 5.93%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the DOM: Window and Location component

Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2764
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.03% / 7.55%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component

JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
CVE-2026-2772
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-0.02% / 6.12%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Use-after-free in the Audio/Video: Playback component

Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-416
Use After Free
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Details not found