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Vulnerability Details :

CVE-2026-4702

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-24 Mar, 2026 | 12:30
Updated At-13 Apr, 2026 | 13:50
Rejected At-
Credits

JIT miscompilation in the JavaScript Engine component

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

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)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:24 Mar, 2026 | 12:30
Updated At:13 Apr, 2026 | 13:50
Rejected At:
â–¼CVE Numbering Authority (CNA)
JIT miscompilation in the JavaScript Engine component

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 140.9 through 140.* (rpm)
  • From 149 through * (rpm)
Vendor
Mozilla CorporationMozilla
Product
Thunderbird
Versions
Unaffected
  • From 140.9 through 140.* (rpm)
  • From 149 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2013560
N/A
https://www.mozilla.org/security/advisories/mfsa2026-20/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-22/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-23/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-24/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2013560
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-20/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-22/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-23/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-24/
Resource: N/A
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-843CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Type: CWE
CWE ID: CWE-843
Description: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:24 Mar, 2026 | 13:16
Updated At:13 Apr, 2026 | 15:17

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

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
Secondary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Type: Secondary
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

Mozilla Corporation
mozilla
>>firefox>>Versions before 140.9.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
Mozilla Corporation
mozilla
>>firefox>>Versions before 149.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Weaknesses
CWE IDTypeSource
CWE-843Primarynvd@nist.gov
CWE-843Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-843
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-843
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2013560security@mozilla.org
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-20/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-22/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-23/security@mozilla.org
N/A
https://www.mozilla.org/security/advisories/mfsa2026-24/security@mozilla.org
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2013560
Source: security@mozilla.org
Resource:
Permissions Required
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-20/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-22/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-23/
Source: security@mozilla.org
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-24/
Source: security@mozilla.org
Resource: N/A

Change History

0
Information is not available yet

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||
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JIT miscompilation in the JavaScript Engine: JIT component

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Action-Not Available
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Matching Score-6
Assigner-Mozilla Corporation
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Matching Score-6
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CVSS Score-8.8||HIGH
EPSS-0.70% / 49.48%
||
7 Day CHG~0.00%
Published-02 Jun, 2023 | 00:00
Updated-09 Jan, 2025 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CWE ID-CWE-704
Incorrect Type Conversion or Cast
CVE-2025-14325
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-7.3||HIGH
EPSS-0.30% / 21.90%
||
7 Day CHG~0.00%
Published-09 Dec, 2025 | 13:37
Updated-13 Apr, 2026 | 15:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2020-15656
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.8||HIGH
EPSS-1.51% / 71.80%
||
7 Day CHG~0.00%
Published-10 Aug, 2020 | 17:43
Updated-04 Aug, 2024 | 13:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Action-Not Available
Vendor-Canonical Ltd.openSUSEMozilla Corporation
Product-ubuntu_linuxthunderbirdfirefoxfirefox_esrleapFirefoxFirefox ESRThunderbird
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-9795
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.70% / 74.80%
||
7 Day CHG~0.00%
Published-26 Apr, 2019 | 16:13
Updated-04 Aug, 2024 | 22:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-617
Reachable Assertion
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2025-70023
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.45% / 36.63%
||
7 Day CHG~0.00%
Published-14 Apr, 2026 | 00:00
Updated-17 Apr, 2026 | 15:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue pertaining to CWE-843: Access of Resource Using Incompatible Type was discovered in transloadit uppy v0.25.6.

Action-Not Available
Vendor-n/a
Product-n/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2024-34392
Matching Score-4
Assigner-JFrog
ShareView Details
Matching Score-4
Assigner-JFrog
CVSS Score-8.1||HIGH
EPSS-1.14% / 63.22%
||
7 Day CHG~0.00%
Published-02 May, 2024 | 18:55
Updated-10 Oct, 2025 | 18:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
libxmljs namespaces type confusion RCE

libxmljs is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes _wrap__xmlNode_nsDef_get()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution.

Action-Not Available
Vendor-libxmljs_projectlibxmljs_project
Product-libxmljslibxmljs
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2024-34391
Matching Score-4
Assigner-JFrog
ShareView Details
Matching Score-4
Assigner-JFrog
CVSS Score-8.1||HIGH
EPSS-1.10% / 62.33%
||
7 Day CHG~0.00%
Published-02 May, 2024 | 18:54
Updated-10 Oct, 2025 | 18:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
libxmljs attrs type confusion RCE

libxmljs is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking a function on the result of attrs() that was called on a parsed node. This vulnerability might lead to denial of service (on both 32-bit systems and 64-bit systems), data leak, infinite loop and remote code execution (on 32-bit systems with the XML_PARSE_HUGE flag enabled).

Action-Not Available
Vendor-libxmljs_projectlibxmljs_project
Product-libxmljslibxmljs
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2020-11603
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.75% / 51.31%
||
7 Day CHG~0.00%
Published-08 Apr, 2020 | 15:41
Updated-04 Aug, 2024 | 11:35
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 Samsung mobile devices with P(9.0) and Q(10.0) (incorporating TEEGRIS) software. Type confusion in the MLDAP Trustlet allows arbitrary code execution. The Samsung ID is SVE-2020-16599 (April 2020).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2024-20078
Matching Score-4
Assigner-MediaTek, Inc.
ShareView Details
Matching Score-4
Assigner-MediaTek, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.26% / 17.74%
||
7 Day CHG~0.00%
Published-01 Jul, 2024 | 03:18
Updated-28 May, 2025 | 20:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In venc, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08737250; Issue ID: MSV-1452.

Action-Not Available
Vendor-Google LLCMediaTek Inc.
Product-mt8786mt8796mt8789mt6779mt8768mt8775mt8781mt8788mt8791tmt8765mt8792mt8795tandroidmt8385mt8755mt8797mt8766mt6768mt8798mt8321mt8771MT6768, MT6779, MT8321, MT8385, MT8755, MT8765, MT8766, MT8768, MT8771, MT8775, MT8781, MT8786, MT8788, MT8789, MT8791T, MT8792, MT8795T, MT8796, MT8797, MT8798mt8765mt8385mt8788mt8791tmt8798mt8768mt8789mt8781androidmt8771mt8792mt8797mt8321mt6768mt8775mt8795tmt8796mt6779mt8755mt8786mt8766
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2026-64608
Matching Score-4
Assigner-Apache Software Foundation
ShareView Details
Matching Score-4
Assigner-Apache Software Foundation
CVSS Score-9.8||CRITICAL
EPSS-0.37% / 29.82%
||
7 Day CHG~0.00%
Published-21 Jul, 2026 | 09:34
Updated-21 Jul, 2026 | 19:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths

Heap type confusion and out-of-bounds read/write in the Apache Fory C++ implementation. When deserializing data in compatible mode, the field-skip paths do not correctly validate the declared field types against the actual data, so input with an inconsistent schema can cause type confusion and out-of-bounds memory access. Only the C++ implementation is affected; other language implementations of Apache Fory are not. This issue affects Apache Fory C++: from 0.14.0 before 1.4.0. Users are recommended to upgrade to version 1.4.0, which fixes the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-Apache Fory
CWE ID-CWE-502
Deserialization of Untrusted Data
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2020-0224
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-9.8||CRITICAL
EPSS-1.58% / 72.97%
||
7 Day CHG~0.00%
Published-17 Jul, 2020 | 20:09
Updated-04 Aug, 2024 | 05:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In FastKeyAccumulator::GetKeysSlow of keys.cc, there is a possible out of bounds write due to type confusion. This could lead to remote code execution when processing a proxy configuration with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-147664838

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidAndroid
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-8167
Matching Score-4
Assigner-Adobe Systems Incorporated
ShareView Details
Matching Score-4
Assigner-Adobe Systems Incorporated
CVSS Score-9.8||CRITICAL
EPSS-4.43% / 90.36%
||
7 Day CHG~0.00%
Published-17 Oct, 2019 | 20:13
Updated-04 Aug, 2024 | 21:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Adobe Acrobat and Reader versions , 2019.012.20040 and earlier, 2017.011.30148 and earlier, 2017.011.30148 and earlier, 2015.006.30503 and earlier, and 2015.006.30503 and earlier have a type confusion vulnerability. Successful exploitation could lead to arbitrary code execution .

Action-Not Available
Vendor-Apple Inc.Microsoft CorporationAdobe Inc.
Product-acrobat_dcwindowsmacosacrobat_reader_dcAdobe Acrobat and Reader
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20584
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 18:55
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.x) and P(9.0) (with TEEGRIS) software. There is type confusion in the HDCP Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14850 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20588
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 18:59
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.x) and P(9.0) (with TEEGRIS) software. There is type confusion in the SEM Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14891 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2018-9471
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-9.8||CRITICAL
EPSS-0.17% / 6.50%
||
7 Day CHG~0.00%
Published-20 Nov, 2024 | 17:16
Updated-18 Dec, 2024 | 16:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In the deserialization constructor of NanoAppFilter.java, there is a possible loss of data due to type confusion. This could lead to local escalation of privilege in the system server with no additional execution privileges needed. User interaction is not needed for exploitation.

Action-Not Available
Vendor-Google LLC
Product-androidAndroidandroid
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2023-21287
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-9.8||CRITICAL
EPSS-0.42% / 34.36%
||
7 Day CHG~0.00%
Published-14 Aug, 2023 | 21:06
Updated-09 Oct, 2024 | 14:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In multiple locations, there is a possible code execution due to type confusion. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Action-Not Available
Vendor-Google LLC
Product-androidAndroidadmob
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2025-59717
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-5.4||MEDIUM
EPSS-0.36% / 28.72%
||
7 Day CHG~0.00%
Published-19 Sep, 2025 | 00:00
Updated-08 Oct, 2025 | 16:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In the @digitalocean/do-markdownit package through 1.16.1 (in npm), the callout and fence_environment plugins perform .includes substring matching if allowedClasses or allowedEnvironments is a string (instead of an array).

Action-Not Available
Vendor-digitaloceanDigitalOcean
Product-do-markdownit@digitalocean/do-markdownit
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-25010
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.49% / 71.36%
||
7 Day CHG~0.00%
Published-31 Dec, 2020 | 08:31
Updated-05 Aug, 2024 | 03:00
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 failure crate through 2019-11-13 for Rust. Type confusion can occur when __private_get_type_id__ is overridden.

Action-Not Available
Vendor-failure_projectn/a
Product-failuren/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20583
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 18:54
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.x) and P(9.0) (with TEEGRIS) software. There is type confusion in the EXT_FR Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14847 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2021-26600
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-5.54% / 92.01%
||
7 Day CHG~0.00%
Published-28 Mar, 2022 | 00:48
Updated-03 Aug, 2024 | 20:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!= instead of !==).

Action-Not Available
Vendor-impresscmsn/a
Product-impresscmsn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20586
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 18:57
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.1) and P(9.0) (with TEEGRIS) software. There is type confusion in the FINGERPRINT Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14864 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20585
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 18:57
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.x) and P(9.0) (with TEEGRIS) software. There is type confusion in the SEC_FR Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14851 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2026-43037
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.56% / 43.45%
||
7 Day CHG~0.00%
Published-01 May, 2026 | 14:15
Updated-20 Jul, 2026 | 12:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() Oskar Kjos reported the following problem. ip4ip6_err() calls icmp_send() on a cloned skb whose cb[] was written by the IPv6 receive path as struct inet6_skb_parm. icmp_send() passes IPCB(skb2) to __ip_options_echo(), which interprets that cb[] region as struct inet_skb_parm (IPv4). The layouts differ: inet6_skb_parm.nhoff at offset 14 overlaps inet_skb_parm.opt.rr, producing a non-zero rr value. __ip_options_echo() then reads optlen from attacker-controlled packet data at sptr[rr+1] and copies that many bytes into dopt->__data, a fixed 40-byte stack buffer (IP_OPTIONS_DATA_FIXED_SIZE). To fix this we clear skb2->cb[], as suggested by Oskar Kjos. Also add minimal IPv4 header validation (version == 4, ihl >= 5).

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat OpenShift Container Platform 4.21Red Hat OpenShift Container Platform 4.17Red Hat OpenShift Container Platform 4.18Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat OpenShift Container Platform 4.15Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat OpenShift Container Platform 4.19Red Hat OpenShift Container Platform 4.14Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Enterprise Linux 8Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat OpenShift Container Platform 4.12Red Hat OpenShift Container Platform 4.13Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat OpenShift Container Platform 4.20Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 9.4 Update Services for SAP SolutionsNVIDIA for RHEL 10
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-43038
Matching Score-4
Assigner-kernel.org
ShareView Details
Matching Score-4
Assigner-kernel.org
CVSS Score-9.8||CRITICAL
EPSS-0.26% / 17.09%
||
7 Day CHG~0.00%
Published-01 May, 2026 | 14:15
Updated-15 Jul, 2026 | 02:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() Sashiko AI-review observed: In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inet_skb_parm. When skb is cloned into skb2 and passed to icmp6_send(), it uses IP6CB(skb2). IP6CB interprets the IPv4 inet_skb_parm as an inet6_skb_parm. The cipso offset in inet_skb_parm.opt directly overlaps with dsthao in inet6_skb_parm at offset 18. If an attacker sends a forged ICMPv4 error with a CIPSO IP option, dsthao would be a non-zero offset. Inside icmp6_send(), mip6_addr_swap() is called and uses ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO). This would scan the inner, attacker-controlled IPv6 packet starting at that offset, potentially returning a fake TLV without checking if the remaining packet length can hold the full 18-byte struct ipv6_destopt_hao. Could mip6_addr_swap() then perform a 16-byte swap that extends past the end of the packet data into skb_shared_info? Should the cb array also be cleared in ip6_err_gen_icmpv6_unreach() and ip6ip6_err() to prevent this? This patch implements the first suggestion. I am not sure if ip6ip6_err() needs to be changed. A separate patch would be better anyway.

Action-Not Available
Vendor-Siemens AGRed Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 6SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPRed Hat Enterprise Linux 10Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 9Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Enterprise Linux 8SIPLUS S7-1500 CPU 1518-4 PN/DP MFPRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsSIMATIC S7-1500 CPU 1518-4 PN/DP MFPRed Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2019-20589
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.90%
||
7 Day CHG~0.00%
Published-24 Mar, 2020 | 19:00
Updated-05 Aug, 2024 | 02:46
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 Samsung mobile devices with O(8.x) and P(9.0) (with TEEGRIS) software. There is type confusion in the SKPM Trustlet, leading to arbitrary code execution. The Samsung ID is SVE-2019-14892 (August 2019).

Action-Not Available
Vendor-n/aGoogle LLC
Product-androidn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2021-23444
Matching Score-4
Assigner-Snyk
ShareView Details
Matching Score-4
Assigner-Snyk
CVSS Score-5.6||MEDIUM
EPSS-1.86% / 77.03%
||
7 Day CHG~0.00%
Published-21 Sep, 2021 | 16:55
Updated-16 Sep, 2024 | 20:58
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Prototype Pollution

This affects the package jointjs before 3.4.2. A type confusion vulnerability can lead to a bypass of CVE-2020-28480 when the user-provided keys used in the path parameter are arrays in the setByPath function.

Action-Not Available
Vendor-clientn/a
Product-jointjsjointjs
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2021-24044
Matching Score-4
Assigner-Meta Platforms, Inc.
ShareView Details
Matching Score-4
Assigner-Meta Platforms, Inc.
CVSS Score-9.8||CRITICAL
EPSS-1.26% / 66.56%
||
7 Day CHG~0.00%
Published-15 Jan, 2022 | 00:35
Updated-03 Aug, 2024 | 19:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.

Action-Not Available
Vendor-Facebook
Product-hermesHermes
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2022-48511
Matching Score-4
Assigner-Huawei Technologies
ShareView Details
Matching Score-4
Assigner-Huawei Technologies
CVSS Score-9.8||CRITICAL
EPSS-0.49% / 39.16%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 12:39
Updated-19 Nov, 2024 | 16:59
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 (UAF) vulnerability in the audio PCM driver module under special conditions. Successful exploitation of this vulnerability may cause audio features to perform abnormally.

Action-Not Available
Vendor-Huawei Technologies Co., Ltd.
Product-emuiharmonyosHarmonyOSEMUI
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CWE ID-CWE-416
Use After Free
CVE-2023-48694
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-6.8||MEDIUM
EPSS-1.33% / 68.15%
||
7 Day CHG~0.00%
Published-05 Dec, 2023 | 00:24
Updated-27 Oct, 2025 | 13:57
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Azure RTOS USBX Remote Code Execution Vulnerability

Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. An attacker can cause remote code execution due to expired pointer dereference and type confusion vulnerabilities in Azure RTOS USBX. The affected components include functions/processes in host stack and host class, related to device linked classes, ASIX, Prolific, SWAR, audio, CDC ECM in RTOS v6.2.1 and below. The fixes have been included in USBX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Action-Not Available
Vendor-azure-rtosEclipse Foundation AISBLMicrosoft Corporation
Product-threadx_usbxusbx
CWE ID-CWE-825
Expired Pointer Dereference
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2026-13776
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-9.6||CRITICAL
EPSS-0.35% / 27.83%
||
7 Day CHG+0.01%
Published-30 Jun, 2026 | 22:37
Updated-02 Jul, 2026 | 05:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Type Confusion in Dawn in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Action-Not Available
Vendor-Apple Inc.Google LLCMicrosoft CorporationLinux Kernel Organization, Inc
Product-chromewindowsmacoslinux_kernelChrome
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2024-7824
Matching Score-4
Assigner-OpenText (formerly Micro Focus)
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Matching Score-4
Assigner-OpenText (formerly Micro Focus)
CVSS Score-6.3||CRITICAL
EPSS-0.42% / 34.42%
||
7 Day CHG~0.00%
Published-03 Oct, 2024 | 17:05
Updated-30 Oct, 2024 | 13:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Type-confusion vulnerability that can cause the WRSA.exe service to crash and generate a crash dump

Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in Webroot SecureAnywhere - Web Shield on Windows, ARM, 64 bit, 32 bit (wrUrl.Dll modules) allows Functionality Misuse.This issue affects SecureAnywhere - Web Shield: before 2.1.2.3.

Action-Not Available
Vendor-webrootWebroot
Product-secureanywhere_web_shieldSecureAnywhere - Web Shield
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2024-7825
Matching Score-4
Assigner-OpenText (formerly Micro Focus)
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Matching Score-4
Assigner-OpenText (formerly Micro Focus)
CVSS Score-6.2||CRITICAL
EPSS-0.36% / 28.82%
||
7 Day CHG~0.00%
Published-03 Oct, 2024 | 17:05
Updated-30 Oct, 2024 | 13:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Type confusion that can cause the WRSA.exe service to crash and generate a crash dump

Access of Resource Using Incompatible Type ('Type Confusion') vulnerability in Webroot SecureAnywhere - Web Shield on Windows, ARM, 64 bit, 32 bit (wrUrl.Dll modules) allows Functionality Misuse.This issue affects SecureAnywhere - Web Shield: before 2.1.2.3.

Action-Not Available
Vendor-webrootWebroot
Product-secureanywhere_web_shieldSecureAnywhere - Web Shield
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2023-42464
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.79% / 76.12%
||
7 Day CHG~0.00%
Published-20 Sep, 2023 | 00:00
Updated-02 Aug, 2024 | 19:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17. When parsing Spotlight RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the underlying protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a malicious actor may be able to fully control the value of the pointer and theoretically achieve Remote Code Execution on the host. This issue is similar to CVE-2023-34967.

Action-Not Available
Vendor-netatalkn/aDebian GNU/Linux
Product-debian_linuxnetatalkn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2023-38199
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.75% / 51.31%
||
7 Day CHG~0.00%
Published-13 Jul, 2023 | 00:00
Updated-30 Oct, 2024 | 18:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.

Action-Not Available
Vendor-owaspn/a
Product-corerulesetn/a
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2020-10611
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
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Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) Industrial Control Systems (ICS)
CVSS Score-9.8||CRITICAL
EPSS-5.23% / 91.65%
||
7 Day CHG~0.00%
Published-15 Apr, 2020 | 18:36
Updated-04 Aug, 2024 | 11:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Triangle MicroWorks SCADA Data Gateway 3.02.0697 through 4.0.122, 2.41.0213 through 4.0.122 allows remote attackers to execute arbitrary code due to the lack of proper validation of user-supplied data, which can result in a type confusion condition. Authentication is not required to exploit this vulnerability. Only applicable to installations using DNP3 Data Sets.

Action-Not Available
Vendor-trianglemicroworksn/a
Product-scada_data_gatewayTriangle MicroWorks SCADA Data Gateway 3.02.0697 through 4.0.122, 2.41.0213 through 4.0.122
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CVE-2025-48756
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-2.9||LOW
EPSS-0.28% / 19.85%
||
7 Day CHG~0.00%
Published-24 May, 2025 | 00:00
Updated-30 Jan, 2026 | 17:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In group_number in the scsir crate 0.2.0 for Rust, there can be an overflow because a hardware device may expect a small number of bits (e.g., 5 bits) for group number.

Action-Not Available
Vendor-cratesmaboroshinokiseki
Product-scsirscsir
CWE ID-CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
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