Common Weakness Enumeration
CWE-681
AllowedIncorrect Conversion between Numeric Types
Abstraction: Base · Status: Draft
When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
146 vulnerabilities reference this CWE, most recent first.
CVE-2026-84970 (GCVE-0-2026-84970)
Vulnerability from cvelistv5 – Published: 2026-09-03 14:56 – Updated: 2026-09-03 15:17
VLAI
EPSS
VEX
Title
Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser
Summary
A numeric truncation weakness exists in the JSON parsing component of the MongoDB C++ Driver's BSON library. An actor who controls the text that an embedding application hands to the library's public JSON parsing interface, when that text is very large, can cause the library to read memory beyond the supplied buffer and return it to the caller, to silently accept only part of the input as a complete document, or to terminate the process. No MongoDB server, credentials, or non-default configuration is required; the effect is confined to the process that uses the library.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:14 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | C++ Driver |
Affected:
3.2.0 , < 4.5.2
(semver)
|
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CVE-2026-84966 (GCVE-0-2026-84966)
Vulnerability from cvelistv5 – Published: 2026-09-03 15:00 – Updated: 2026-09-03 15:38
VLAI
EPSS
VEX
Title
BSON element injection via NUL-embedded document keys in builder append
Summary
An incorrect numeric type conversion in the BSON document building component of the MongoDB C++ Driver may cause a length value to be interpreted incorrectly. When an application supplies an extremely large, non-terminated field name to the builder, the library may read memory outside the intended buffer and terminate the calling process. No authentication is required, but the calling application must pass the oversized name in a specific form.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:38 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | C++ Driver |
Affected:
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CVE-2026-84963 (GCVE-0-2026-84963)
Vulnerability from cvelistv5 – Published: 2026-09-03 15:03 – Updated: 2026-09-03 15:35
VLAI
EPSS
VEX
Title
Silent field truncation via unchecked int cast of huge JSON string values in JSON-to-BSON parser
Summary
An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause an unusually large text value to be silently shortened, or the corresponding field to be omitted, while the parsing operation still reports success and returns no error. An unauthenticated party who can supply the input processed by an application that uses this component may cause that application to hold data that does not match what was submitted, which may result in unintended alteration of data.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:35 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
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CVE-2026-82522 (GCVE-0-2026-82522)
Vulnerability from cvelistv5 – Published: 2026-09-02 17:37 – Updated: 2026-09-02 18:01 X_Open Source
VLAI
EPSS
VEX
Title
libjxl < 0.12.0 Container Box Parser Integer Underflow via 32-bit Size Truncation
Summary
libjxl before 0.12 contains an integer underflow vulnerability in the container box parser that allows remote attackers to inject arbitrary metadata by exploiting 64-bit box size truncation to size_t on 32-bit platforms. Attackers can supply a crafted JPEG XL file causing the decoder to parse attacker-controlled codestream bytes as phantom box headers, enabling injection of arbitrary metadata (Exif, XMP, IPTC, JUMBF) and potential out-of-bounds reads.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 18:01 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/libjxl/libjxl/releases/tag/v0.12.0 | release-notes |
| https://github.com/libjxl/libjxl/pull/4885 | issue-tracking |
| https://github.com/libjxl/libjxl/commit/22ad80af1… | patch |
| https://www.vulncheck.com/advisories/libjxl-conta… | third-party-advisory |
Date Public
2026-07-01 00:00
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CVE-2026-82457 (GCVE-0-2026-82457)
Vulnerability from cvelistv5 – Published: 2026-08-29 13:47 – Updated: 2026-09-01 02:10
VLAI
EPSS
VEX
Title
su-exec through 0.3 Privilege Escalation via Numeric User ID
Summary
su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 02:10 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ncopa/su-exec/blob/89c016e6e08… | technical-description |
| https://gist.github.com/thesmartshadow/ed96e2a886… | third-party-advisory |
| https://github.com/ncopa/su-exec | product |
| https://www.vulncheck.com/advisories/su-exec-thro… | third-party-advisory |
Date Public
2026-08-27 00:00
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CVE-2026-75145 (GCVE-0-2026-75145)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:27 – Updated: 2026-08-21 19:52 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg Integer Narrowing Conversion OOB Memory Access in AV1 RTP Packetizer
Summary
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaining frame size. On targets where long is 32 bits, including 64-bit Windows, sufficiently large OBU size values are sign-flipped by the narrowing cast, producing a negative value that passes the payload size check. This allows an oversized OBU to bypass the safety bound on affected platforms, leading to out-of-bounds memory access when the oversized value is subsequently used as a copy length.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:52 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24090 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/b4c1… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-integ… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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CVE-2026-69438 (GCVE-0-2026-69438)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:15 – Updated: 2026-09-11 22:14
VLAI
EPSS
VEX
Title
Microsoft JScript Remote Code Execution Vulnerability
Summary
Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 13:35 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
20 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9512
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9245
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7725
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7725
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7582
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7582
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9445
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9445
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2954
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26349
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26349
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23397
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23397
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9512
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9512
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9245
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9245
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5622
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33438
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33438
(custom)
|
Date Public
2026-09-08 14:00
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CVE-2026-55768 (GCVE-0-2026-55768)
Vulnerability from cvelistv5 – Published: 2026-07-30 20:34 – Updated: 2026-07-31 23:10
VLAI
EPSS
VEX
Title
GoAccess WebSocket Server: Signed 32 bit truncation of the 64 bit frame length causes a remote pre-authentication denial of service
Summary
GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. Prior to version 1.11, the built-in WebSocket server narrows a 64-bit extended frame length into the signed 32-bit WSFrame.payloadlen field before enforcing the maximum frame size, allowing an unauthenticated remote client to bypass the guard and force an approximately 18-exabyte allocation request that terminates the process. This issue is fixed in version 1.11.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 23:08 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/allinurl/goaccess/security/adv… | x_refsource_CONFIRM |
| https://github.com/allinurl/goaccess/commit/ea74b… | x_refsource_MISC |
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CVE-2026-55123 (GCVE-0-2026-55123)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:09 – Updated: 2026-09-09 19:39
VLAI
EPSS
VEX
Title
Microsoft PowerPoint Remote Code Execution Vulnerability
Summary
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 03:57 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office 365 for Mac |
Affected:
1.0.0 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2021 |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2024 |
Affected:
16.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC for Mac 2021 |
Affected:
16.0.1 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft Office LTSC for Mac 2024 |
Affected:
16.0.0 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft PowerPoint 2016 |
Affected:
16.0.0 , < 16.0.5561.1000
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-53923 (GCVE-0-2026-53923)
Vulnerability from cvelistv5 – Published: 2026-06-22 21:55 – Updated: 2026-06-23 15:05
VLAI
EPSS
VEX
Title
vLLM GGUF Kernels: int64_t to int truncation of tensor dimensions causes GPU buffer overflow
Summary
vLLM is an inference and serving engine for large language models (LLMs). From 0.5.5 until 0.23.1rc0, integer truncation of tensor dimensions in vLLM's GGUF dequantize kernels (csrc/quantization/gguf/gguf_kernel.cu) causes partial tensor processing. The output tensor is allocated at full size via torch::empty (uninitialized memory), but the dequantize CUDA kernel processes only a truncated number of elements. The unfilled portion of the output tensor retains whatever was previously in GPU memory. In multi-tenant inference deployments, this residual GPU memory may contain tensor data from other users' inference requests, constituting information disclosure. This vulnerability is fixed in 0.23.1rc0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 15:04 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/pull/44971 | x_refsource_MISC |
| https://github.com/vllm-project/vllm/commit/f2197… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
>= 0.5.5, < 0.23.1rc0
|
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Mitigation
Implementation
Avoid making conversion between numeric types. Always check for the allowed ranges.
No CAPEC attack patterns related to this CWE.