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Vulnerability Details :

CVE-2020-6840

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-11 Jan, 2020 | 02:05
Updated At-04 Aug, 2024 | 09:11
Rejected At-
Credits

In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.

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:11 Jan, 2020 | 02:05
Updated At:04 Aug, 2024 | 09:11
Rejected At:
▼CVE Numbering Authority (CNA)

In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/mruby/mruby/issues/4927
x_refsource_MISC
Hyperlink: https://github.com/mruby/mruby/issues/4927
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
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://github.com/mruby/mruby/issues/4927
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/mruby/mruby/issues/4927
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:11 Jan, 2020 | 03:15
Updated At:13 Jan, 2020 | 19:59

In mruby 2.1.0, there is a use-after-free in hash_slice in mrbgems/mruby-hash-ext/src/hash-ext.c.

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
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

mruby
mruby
>>mruby>>2.1.0
cpe:2.3:a:mruby:mruby:2.1.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-416Primarynvd@nist.gov
CWE ID: CWE-416
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/mruby/mruby/issues/4927cve@mitre.org
Exploit
Patch
Third Party Advisory
Hyperlink: https://github.com/mruby/mruby/issues/4927
Source: cve@mitre.org
Resource:
Exploit
Patch
Third Party Advisory

Change History

0
Information is not available yet

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Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2021-31166
Matching Score-4
Assigner-Microsoft Corporation
ShareView Details
Matching Score-4
Assigner-Microsoft Corporation
CVSS Score-9.8||CRITICAL
EPSS-99.66% / 99.95%
||
7 Day CHG~0.00%
Published-11 May, 2021 | 19:11
Updated-30 Oct, 2025 | 19:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-04-27||Apply updates per vendor instructions.
HTTP Protocol Stack Remote Code Execution Vulnerability

HTTP Protocol Stack Remote Code Execution Vulnerability

Action-Not Available
Vendor-Microsoft Corporation
Product-windows_server_2004windows_10_2004windows_10_20h2windows_server_20h2Windows 10 Version 2004Windows 10 Version 20H2Windows Server version 20H2Windows Server version 2004HTTP Protocol Stack
CWE ID-CWE-416
Use After Free
CVE-2021-29935
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-7.3||HIGH
EPSS-1.03% / 59.13%
||
7 Day CHG~0.00%
Published-01 Apr, 2021 | 04:23
Updated-03 Aug, 2024 | 22:18
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 rocket crate before 0.4.7 for Rust. uri::Formatter can have a use-after-free if a user-provided function panics.

Action-Not Available
Vendor-rocketn/a
Product-rocketn/a
CWE ID-CWE-416
Use After Free
CVE-2021-28305
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.32% / 67.15%
||
7 Day CHG~0.00%
Published-12 Mar, 2021 | 08:15
Updated-03 Aug, 2024 | 21:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
Vendor-dieseln/a
Product-dieseln/a
CWE ID-CWE-416
Use After Free
CVE-2025-52910
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.33% / 24.31%
||
7 Day CHG+0.01%
Published-04 Nov, 2025 | 00:00
Updated-07 Nov, 2025 | 13:00
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 GPU in Samsung Mobile Processor and Wearable Processor Exynos 1280, 2200, 1330, 1380, 1480, 2400. A Use-After-Free leads to privilege escalation.

Action-Not Available
Vendor-n/aSamsung
Product-exynos_1480exynos_1380_firmwareexynos_2200exynos_2200_firmwareexynos_1280_firmwareexynos_1380exynos_1330exynos_2400_firmwareexynos_2400exynos_1330_firmwareexynos_1280exynos_1480_firmwaren/a
CWE ID-CWE-416
Use After Free
CVE-2026-45972
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.50% / 38.72%
||
7 Day CHG~0.00%
Published-27 May, 2026 | 12:18
Updated-16 Jun, 2026 | 02:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
smb: client: fix potential UAF and double free in smb2_open_file()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.

Action-Not Available
Vendor-Linux Kernel Organization, Inc
Product-linux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2021-27377
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.31% / 66.91%
||
7 Day CHG~0.00%
Published-18 Feb, 2021 | 03:35
Updated-03 Aug, 2024 | 20:48
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 yottadb crate before 1.2.0 for Rust. For some memory-allocation patterns, ydb_subscript_next_st and ydb_subscript_prev_st have a use-after-free.

Action-Not Available
Vendor-yottadbn/a
Product-yottadbn/a
CWE ID-CWE-416
Use After Free
CVE-2015-5123
Matching Score-4
Assigner-Adobe Systems Incorporated
ShareView Details
Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-7.8||HIGH
EPSS-18.49% / 96.87%
||
7 Day CHG~0.00%
Published-14 Jul, 2015 | 10:00
Updated-21 Apr, 2026 | 21:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-05-04||The impacted product is end-of-life and should be disconnected if still in use.

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

Action-Not Available
Vendor-n/aSUSERed Hat, Inc.Adobe Inc.Linux Kernel Organization, IncopenSUSEMicrosoft CorporationApple Inc.
Product-evergreenlinux_enterprise_desktopenterprise_linux_workstationenterprise_linux_serverenterprise_linux_desktopenterprise_linux_server_euswindowsflash_playermacosflash_player_desktop_runtimelinux_kernellinux_enterprise_workstation_extensionn/aFlash Player
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-0.73% / 49.45%
||
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-2021-26689
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.55% / 41.65%
||
7 Day CHG~0.00%
Published-04 Feb, 2021 | 05:15
Updated-03 Aug, 2024 | 20:33
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 on LG mobile devices with Android OS 8.0, 8.1, 9.0, and 10 software. The USB laf gadget has a use-after-free. The LG ID is LVE-SMP-200031 (February 2021).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-416
Use After Free
CVE-2025-50518
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.41% / 33.05%
||
7 Day CHG~0.00%
Published-14 Aug, 2025 | 00:00
Updated-11 Sep, 2025 | 18:15
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 coap_delete_pdu_lkd function within coap_pdu.c of the libcoap library. This issue occurs due to improper handling of memory after the freeing of a PDU object, leading to potential memory corruption or the possibility of executing arbitrary code. NOTE: this is disputed by the Supplier because it only occurs when an application uses libcoap incorrectly.

Action-Not Available
Vendor-n/a
Product-n/a
CWE ID-CWE-416
Use After Free
CVE-2021-27646
Matching Score-4
Assigner-Synology Inc.
ShareView Details
Matching Score-4
Assigner-Synology Inc.
CVSS Score-9.8||CRITICAL
EPSS-3.79% / 88.58%
||
7 Day CHG~0.00%
Published-12 Mar, 2021 | 06:45
Updated-14 Jan, 2025 | 19:29
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 vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Action-Not Available
Vendor-Synology, Inc.
Product-diskstation_managerSynology DiskStation Manager (DSM)
CWE ID-CWE-416
Use After Free
CVE-2015-5119
Matching Score-4
Assigner-Adobe Systems Incorporated
ShareView Details
Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-7.8||HIGH
EPSS-99.34% / 99.93%
||
7 Day CHG~0.00%
Published-08 Jul, 2015 | 14:00
Updated-21 Apr, 2026 | 21:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-03-24||The impacted product is end-of-life and should be disconnected if still in use.

Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.296 and 14.x through 18.0.0.194 on Windows and OS X and 11.x through 11.2.202.468 on Linux allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

Action-Not Available
Vendor-n/aSUSERed Hat, Inc.Adobe Inc.Linux Kernel Organization, IncopenSUSEMicrosoft CorporationApple Inc.
Product-evergreenlinux_enterprise_desktopmac_os_xenterprise_linux_serverenterprise_linux_workstationenterprise_linux_desktopenterprise_linux_server_from_rhuiwindowsflash_playerenterprise_linux_server_ausenterprise_linux_euslinux_kernellinux_enterprise_workstation_extensionopensusen/aFlash Player
CWE ID-CWE-416
Use After Free
CVE-2015-5122
Matching Score-4
Assigner-Adobe Systems Incorporated
ShareView Details
Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-7.8||HIGH
EPSS-93.69% / 99.83%
||
7 Day CHG~0.00%
Published-14 Jul, 2015 | 10:00
Updated-21 Apr, 2026 | 21:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Known KEV||Action Due Date - 2022-05-04||The impacted product is end-of-life and should be disconnected if still in use.

Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.

Action-Not Available
Vendor-n/aSUSERed Hat, Inc.Adobe Inc.Linux Kernel Organization, IncopenSUSEMicrosoft CorporationApple Inc.
Product-evergreenlinux_enterprise_desktopwindows_8.1enterprise_linux_serverenterprise_linux_workstationlinux_enterprise_workstation_extensionenterprise_linux_desktopenterprise_linux_server_euswindowsflash_playermacoswindows_8linux_kernelflash_player_desktop_runtimen/aFlash Player
CWE ID-CWE-416
Use After Free
CVE-2021-27649
Matching Score-4
Assigner-Synology Inc.
ShareView Details
Matching Score-4
Assigner-Synology Inc.
CVSS Score-9.8||CRITICAL
EPSS-2.01% / 78.30%
||
7 Day CHG~0.00%
Published-23 Jun, 2021 | 09:50
Updated-14 Jan, 2025 | 19:29
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 vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.

Action-Not Available
Vendor-Synology, Inc.
Product-diskstation_managerdiskstation_manager_unified_controllerDiskStation Manager (DSM)
CWE ID-CWE-416
Use After Free
CVE-2025-48752
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-2.9||LOW
EPSS-0.30% / 21.16%
||
7 Day CHG~0.00%
Published-24 May, 2025 | 00:00
Updated-30 Jan, 2026 | 21:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In the process-sync crate 0.2.2 for Rust, the drop function lacks a check for whether the pthread_mutex is unlocked.

Action-Not Available
Vendor-forestryksForestryks
Product-process-syncprocess-sync-rs
CWE ID-CWE-416
Use After Free
CVE-2025-47917
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-8.9||HIGH
EPSS-1.99% / 78.08%
||
7 Day CHG+0.08%
Published-20 Jul, 2025 | 00:00
Updated-03 Nov, 2025 | 20:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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).

Action-Not Available
Vendor-MbedArm Limited
Product-mbed_tlsmbedtls
CWE ID-CWE-416
Use After Free
CVE-2021-22930
Matching Score-4
Assigner-HackerOne
ShareView Details
Matching Score-4
Assigner-HackerOne
CVSS Score-9.8||CRITICAL
EPSS-37.29% / 98.32%
||
7 Day CHG~0.00%
Published-07 Oct, 2021 | 00:00
Updated-30 Apr, 2025 | 22:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to a use after free attack where an attacker might be able to exploit the memory corruption, to change process behavior.

Action-Not Available
Vendor-Node.js (OpenJS Foundation)NetApp, Inc.Siemens AGDebian GNU/Linux
Product-sinec_infrastructure_network_servicesnextgen_apidebian_linuxnode.jsNode
CWE ID-CWE-416
Use After Free
CVE-2023-37117
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.87% / 54.12%
||
7 Day CHG~0.00%
Published-12 Jan, 2024 | 00:00
Updated-03 Sep, 2024 | 19:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A heap-use-after-free vulnerability was found in live555 version 2023.05.10 while handling the SETUP.

Action-Not Available
Vendor-live555n/a
Product-live555n/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-3.00% / 85.64%
||
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-2015-2301
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-14.39% / 96.16%
||
7 Day CHG~0.00%
Published-30 Mar, 2015 | 10:00
Updated-06 May, 2026 | 22:30
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 vulnerability in the phar_rename_archive function in phar_object.c in PHP before 5.5.22 and 5.6.x before 5.6.6 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger an attempted renaming of a Phar archive to the name of an existing file.

Action-Not Available
Vendor-n/aCanonical Ltd.Apple Inc.openSUSERed Hat, Inc.The PHP GroupDebian GNU/Linux
Product-debian_linuxubuntu_linuxmac_os_xphpenterprise_linux_serverenterprise_linux_workstationenterprise_linux_desktopenterprise_linux_hpc_node_eusenterprise_linux_server_eusenterprise_linux_hpc_nodeopensusen/a
CWE ID-CWE-416
Use After Free
CVE-2025-43222
Matching Score-4
Assigner-Apple Inc.
ShareView Details
Matching Score-4
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.70% / 48.48%
||
7 Day CHG~0.00%
Published-29 Jul, 2025 | 23:29
Updated-02 Apr, 2026 | 19:20
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 issue was addressed by removing the vulnerable code. This issue is fixed in iPadOS 17.7.9, macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An attacker may be able to cause unexpected app termination.

Action-Not Available
Vendor-Apple Inc.
Product-ipadosmacosmacOSiPadOS
CWE ID-CWE-416
Use After Free
CVE-2021-22348
Matching Score-4
Assigner-Huawei Technologies
ShareView Details
Matching Score-4
Assigner-Huawei Technologies
CVSS Score-9.8||CRITICAL
EPSS-0.77% / 50.70%
||
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-2026-45185
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.23% / 64.95%
||
7 Day CHG~0.00%
Published-12 May, 2026 | 00:00
Updated-14 May, 2026 | 03:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing path. It is triggered when a client sends a TLS close_notify mid-body during a CHUNKING transfer, followed by a final cleartext byte on the same TCP connection. This can lead to heap corruption. An unauthenticated network attacker exploiting this vulnerability could execute arbitrary code.

Action-Not Available
Vendor-Exim
Product-Exim
CWE ID-CWE-416
Use After Free
CVE-2025-37924
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-9.07% / 94.63%
||
7 Day CHG~0.00%
Published-20 May, 2025 | 15:21
Updated-11 May, 2026 | 21:17
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 kerberos authentication

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL.

Action-Not Available
Vendor-Debian GNU/LinuxLinux Kernel Organization, Inc
Product-debian_linuxlinux_kernelLinux
CWE ID-CWE-416
Use After Free
CVE-2021-20232
Matching Score-4
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-4
Assigner-Red Hat, Inc.
CVSS Score-9.8||CRITICAL
EPSS-3.44% / 87.46%
||
7 Day CHG~0.00%
Published-12 Mar, 2021 | 18:25
Updated-03 Dec, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences.

Action-Not Available
Vendor-n/aFedora ProjectGNURed Hat, Inc.
Product-gnutlsenterprise_linuxfedoragnutls
CWE ID-CWE-416
Use After Free
CVE-2021-1864
Matching Score-4
Assigner-Apple Inc.
ShareView Details
Matching Score-4
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-2.09% / 79.17%
||
7 Day CHG~0.00%
Published-08 Sep, 2021 | 14:48
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 issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An attacker with JavaScript execution may be able to execute arbitrary code.

Action-Not Available
Vendor-Apple Inc.
Product-iphone_ostvoswatchosipadostvOSwatchOSiOS and iPadOS
CWE ID-CWE-416
Use After Free
CVE-2024-1284
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-9.8||CRITICAL
EPSS-1.12% / 62.02%
||
7 Day CHG~0.00%
Published-06 Feb, 2024 | 23:15
Updated-15 May, 2025 | 20:15
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 Mojo in Google Chrome prior to 121.0.6167.160 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Fedora ProjectGoogle LLC
Product-chromefedoraChrome
CWE ID-CWE-416
Use After Free
CVE-2015-3055
Matching Score-4
Assigner-Adobe Systems Incorporated
ShareView Details
Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-7.5||HIGH
EPSS-9.80% / 94.93%
||
7 Day CHG~0.00%
Published-13 May, 2015 | 10:00
Updated-06 May, 2026 | 22:30
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 vulnerability in Adobe Reader and Acrobat 10.x before 10.1.14 and 11.x before 11.0.11 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-3053, CVE-2015-3054, CVE-2015-3059, and CVE-2015-3075.

Action-Not Available
Vendor-n/aApple Inc.Microsoft CorporationAdobe Inc.
Product-acrobatacrobat_readermac_os_xwindowsn/a
CWE ID-CWE-416
Use After Free
CVE-2021-20204
Matching Score-4
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-4
Assigner-Red Hat, Inc.
CVSS Score-9.8||CRITICAL
EPSS-2.16% / 79.84%
||
7 Day CHG~0.00%
Published-06 May, 2021 | 14:50
Updated-17 Oct, 2024 | 18:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. This degrades the confidentiality, integrity and availability of third-party software that uses libgetdata as a library. This vulnerability may lead to arbitrary code execution or privilege escalation depending on input/skills of attacker.

Action-Not Available
Vendor-getdata_projectn/aDebian GNU/LinuxFedora Project
Product-getdatadebian_linuxfedoragetdata
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
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-0.44% / 35.38%
||
7 Day CHG~0.00%
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-2026-43402
Matching Score-4
Assigner-kernel.org
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Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.46% / 36.21%
||
7 Day CHG~0.00%
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-2021-1976
Matching Score-4
Assigner-Qualcomm, Inc.
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Matching Score-4
Assigner-Qualcomm, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.77% / 50.85%
||
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.
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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-2026-43379
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.44% / 35.38%
||
7 Day CHG~0.00%
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-2020-9895
Matching Score-4
Assigner-Apple Inc.
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Matching Score-4
Assigner-Apple Inc.
CVSS Score-9.8||CRITICAL
EPSS-4.14% / 89.53%
||
7 Day CHG-0.03%
Published-16 Oct, 2020 | 16:40
Updated-04 Aug, 2024 | 10:43
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 issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Action-Not Available
Vendor-Apple Inc.
Product-itunesiphone_oswatchosipadostvossafariicloudiTunes for WindowswatchOSiCloud for WindowsSafariiOSiCloud for Windows (Legacy)tvOS
CWE ID-CWE-416
Use After Free
CVE-2020-9633
Matching Score-4
Assigner-Adobe Systems Incorporated
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Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-9.8||CRITICAL
EPSS-7.56% / 93.74%
||
7 Day CHG~0.00%
Published-12 Jun, 2020 | 13:17
Updated-04 Aug, 2024 | 10:34
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Adobe Flash Player Desktop Runtime 32.0.0.371 and earlier, Adobe Flash Player for Google Chrome 32.0.0.371 and earlier, and Adobe Flash Player for Microsoft Edge and Internet Explorer 32.0.0.330 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

Action-Not Available
Vendor-Google LLCAdobe Inc.Apple Inc.Microsoft CorporationLinux Kernel Organization, Inc
Product-linux_kernelwindows_8.1chrome_oswindowsflash_player_desktop_runtimemacoswindows_10flash_playerAdobe Flash Player
CWE ID-CWE-416
Use After Free
CVE-2020-8447
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.94% / 77.51%
||
7 Day CHG~0.00%
Published-30 Jan, 2020 | 00:33
Updated-04 Aug, 2024 | 09:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of syscheck formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).

Action-Not Available
Vendor-ossecn/a
Product-ossecn/a
CWE ID-CWE-416
Use After Free
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