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.
172 vulnerabilities reference this CWE, most recent first.
CVE-2026-114654 (GCVE-0-2026-114654)
Vulnerability from cvelistv5 – Published: 2026-10-22 19:13 – Updated: 2026-10-22 21:25
VLAI
EPSS
VEX
Title
BSON output corruption via out-of-range binary subtype bypassing UUID and OldBinary guards
Summary
A numeric-type conversion flaw in the BSON handling library of the MongoDB C# Driver allows an out-of-range binary subtype value supplied through untrusted textual input to bypass the library's binary-element integrity checks. When such a value is later encoded, it is narrowed to a smaller wire representation, producing binary elements that misdeclare their type or length. An unauthenticated party able to supply text parsed by an affected application can cause it to emit and persist malformed binary data, which subsequent readers either reject with an error or silently interpret as shorter than the data that was validated.
Severity
6.5 (Medium)
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
Impacted products
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CVE-2026-114118 (GCVE-0-2026-114118)
Vulnerability from cvelistv5 – Published: 2026-10-21 00:37 – Updated: 2026-10-27 21:58
VLAI
EPSS
VEX
Title
Vyper 0.3.4 through 0.5.0b1 create_from_blueprint Offset Validation Bypass via Unsigned Wraparound
Summary
Vyper 0.3.4 through 0.5.0b1 computes the remaining blueprint size in create_from_blueprint by uint256 subtraction without first checking that code_offset is below the blueprint's code size, so a huge offset wraps to a small positive value. An attacker controlling code_offset can make a factory deploy contracts with no runtime code, potentially trapping ETH and tokens.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-27 21:58 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/vyperlang/vyper/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/vyper-0.3.4-… | third-party-advisory |
Impacted products
Date Public
2026-10-06 00:00
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CVE-2026-107224 (GCVE-0-2026-107224)
Vulnerability from cvelistv5 – Published: 2026-10-07 18:53 – Updated: 2026-10-07 19:30
VLAI
EPSS
VEX
Title
Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader
Summary
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, a Zip64 uncompressed size with the high bit set is converted from uint64 to a negative int64 before signed size-limit checks and allocation. ReadZipReader obtains UncompressedSize64 through FileInfo.Size and passes the wrapped negative value to readFile. When a crafted Zip64 entry declares an uncompressed size from 2^63 through 2^64-1 and the workbook is opened, the negative size bypasses unzip limits and reaches make as a negative capacity, allowing an attacker to panic during workbook opening. No fixed version is available as of this review.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 19:29 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/qax-os/excelize/security/advis… | x_refsource_CONFIRM |
| https://github.com/qax-os/excelize/pull/2369 | x_refsource_MISC |
| https://github.com/qax-os/excelize/commit/db93f8d… | x_refsource_MISC |
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CVE-2026-106432 (GCVE-0-2026-106432)
Vulnerability from cvelistv5 – Published: 2026-10-08 19:02 – Updated: 2026-10-08 19:51
VLAI
EPSS
VEX
Title
Heap buffer overflow via 32-bit string-length truncation in MongoDB PHP Driver
Summary
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:51 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | PHP Driver |
Affected:
1.16.0 , < 1.21.11
(semver)
Affected: 2.0.0 , < 2.1.11 (semver) Affected: 2.2.0 , < 2.5.4 (semver) |
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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:
3.2.0 , < 4.5.2
(semver)
|
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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-2026-83872 (GCVE-0-2026-83872)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:59 – Updated: 2026-10-28 18:12
VLAI
EPSS
VEX
Title
Windows TCP/IP Local Elevation of Privilege Vulnerability
Summary
Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 00:00 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
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7807
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9711
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9711
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.3231
(custom)
|
|
| Microsoft | Windows 11 Version 26H2 |
Affected:
10.0.26300.0 , < 10.0.26300.9711
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-82522 (GCVE-0-2026-82522)
Vulnerability from cvelistv5 – Published: 2026-09-02 17:37 – Updated: 2026-10-01 15:21 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 |
Impacted products
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: 2026-09-24 14:20
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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"timestamp": "2026-09-01T02:10:20.796890Z",
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"url": "https://github.com/ncopa/su-exec/blob/89c016e6e08749d583efdeda04b9f73e1218e253/su-exec.c"
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"tags": [
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"title": "su-exec through 0.3 Privilege Escalation via Numeric User ID",
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"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"cveId": "CVE-2026-82457",
"datePublished": "2026-08-29T13:47:58.176Z",
"dateReserved": "2026-08-29T13:23:00.303Z",
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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.