CWE-197
AllowedNumeric Truncation Error
Abstraction: Base · Status: Incomplete
Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.
116 vulnerabilities reference this CWE, most recent first.
GHSA-32FW-GQ77-F2F2
Vulnerability from github – Published: 2025-12-02 09:30 – Updated: 2025-12-17 00:43In Eclipse Paho Go MQTT v3.1 library (paho.mqtt.golang) versions <=1.5.0 UTF-8 encoded strings, passed into the library, may be incorrectly encoded if their length exceeds 65535 bytes. This may lead to unexpected content in packets sent to the server (for example, part of an MQTT topic may leak into the message body in a PUBLISH packet).
The issue arises because the length of the data passed in was converted from an int64/int32 (depending upon CPU) to an int16 without checks for overflows. The int16 length was then written, followed by the data (e.g. topic). This meant that when the data (e.g. topic) was over 65535 bytes then the amount of data written exceeds what the length field indicates. This could lead to a corrupt packet, or mean that the excess data leaks into another field (e.g. topic leaks into message body).
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/eclipse/paho.mqtt.golang"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-10543"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": true,
"github_reviewed_at": "2025-12-02T17:34:33Z",
"nvd_published_at": "2025-12-02T09:15:46Z",
"severity": "MODERATE"
},
"details": "In Eclipse Paho Go MQTT v3.1 library (paho.mqtt.golang) versions \u003c=1.5.0 UTF-8 encoded strings, passed into the library, may be incorrectly encoded if their length exceeds 65535 bytes. This may lead to unexpected content in packets sent to the server (for example, part of an MQTT topic may leak into the message body in a PUBLISH packet).\n\nThe issue arises because the length of the data passed in was converted from an int64/int32 (depending upon CPU) to an int16 without checks for overflows. The int16 length was then written, followed by the data (e.g. topic). This meant that when the data (e.g. topic) was over 65535 bytes then the amount of data written exceeds what the length field indicates. This could lead to a corrupt packet, or mean that the excess data leaks into another field (e.g. topic leaks into message body).",
"id": "GHSA-32fw-gq77-f2f2",
"modified": "2025-12-17T00:43:02Z",
"published": "2025-12-02T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10543"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-paho/paho.mqtt.golang/issues/730"
},
{
"type": "WEB",
"url": "https://github.com/eclipse-paho/paho.mqtt.golang/pull/714"
},
{
"type": "WEB",
"url": "https://github.com/alpinelinux/build-server-status/commit/e3487897db32c8c3d0287643f8384a6669e93731"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-32fw-gq77-f2f2"
},
{
"type": "PACKAGE",
"url": "https://github.com/eclipse-paho/paho.mqtt.golang"
},
{
"type": "WEB",
"url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/254"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Eclipse Paho Go MQTT may incorrectly encode strings if length exceeds 65535 bytes"
}
GHSA-3F6W-RMCX-PGMH
Vulnerability from github – Published: 2026-04-27 09:34 – Updated: 2026-04-27 15:30uriparser before 1.0.1 has numeric truncation in text range comparison, if an application accepts URIs with a length in gigabytes.
{
"affected": [],
"aliases": [
"CVE-2026-42371"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-27T07:16:04Z",
"severity": "MODERATE"
},
"details": "uriparser before 1.0.1 has numeric truncation in text range comparison, if an application accepts URIs with a length in gigabytes.",
"id": "GHSA-3f6w-rmcx-pgmh",
"modified": "2026-04-27T15:30:51Z",
"published": "2026-04-27T09:34:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42371"
},
{
"type": "WEB",
"url": "https://github.com/uriparser/uriparser/pull/298"
},
{
"type": "WEB",
"url": "https://uriparser.github.io"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/04/27/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3J5Q-86H5-5HJ9
Vulnerability from github – Published: 2026-08-11 18:31 – Updated: 2026-08-11 18:31Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-65798"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T17:18:59Z",
"severity": "MODERATE"
},
"details": "Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-3j5q-86h5-5hj9",
"modified": "2026-08-11T18:31:40Z",
"published": "2026-08-11T18:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65798"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65798"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4MJW-2G27-Q8WR
Vulnerability from github – Published: 2024-07-09 18:30 – Updated: 2024-07-09 18:30Azure Kinect SDK Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-38086"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T17:15:44Z",
"severity": "MODERATE"
},
"details": "Azure Kinect SDK Remote Code Execution Vulnerability",
"id": "GHSA-4mjw-2g27-q8wr",
"modified": "2024-07-09T18:30:52Z",
"published": "2024-07-09T18:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38086"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38086"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-54CF-PRCC-99VC
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-49792"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:16:54Z",
"severity": "HIGH"
},
"details": "Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.",
"id": "GHSA-54cf-prcc-99vc",
"modified": "2026-07-14T18:32:02Z",
"published": "2026-07-14T18:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49792"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49792"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5JVM-83Q6-H5JJ
Vulnerability from github – Published: 2026-06-15 18:31 – Updated: 2026-06-15 18:31LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
{
"affected": [],
"aliases": [
"CVE-2026-6039"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-15T18:16:36Z",
"severity": "MODERATE"
},
"details": "LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.",
"id": "GHSA-5jvm-83q6-h5jj",
"modified": "2026-06-15T18:31:19Z",
"published": "2026-06-15T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6039"
},
{
"type": "WEB",
"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-6039"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-6796-H2XC-M87C
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Numeric truncation error in Windows Shell allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-49679"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:52Z",
"severity": "HIGH"
},
"details": "Numeric truncation error in Windows Shell allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-6796-h2xc-m87c",
"modified": "2025-07-08T18:31:47Z",
"published": "2025-07-08T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49679"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49679"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-69C6-79JC-FJHR
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-44823"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:18Z",
"severity": "HIGH"
},
"details": "Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-69c6-79jc-fjhr",
"modified": "2026-06-09T18:30:48Z",
"published": "2026-06-09T18:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44823"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44823"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6WCV-G2H3-2M7Q
Vulnerability from github – Published: 2024-03-12 18:31 – Updated: 2024-03-12 18:31Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-21434"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-12T17:15:52Z",
"severity": "HIGH"
},
"details": "Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability",
"id": "GHSA-6wcv-g2h3-2m7q",
"modified": "2024-03-12T18:31:13Z",
"published": "2024-03-12T18:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21434"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21434"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7G6F-R888-776W
Vulnerability from github – Published: 2024-05-03 03:30 – Updated: 2024-05-03 03:30D-Link DAP-1360 webupg UPGCGI_CheckAuth Numeric Truncation Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1360 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of requests to the /cgi-bin/webupg endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-18423.
{
"affected": [],
"aliases": [
"CVE-2023-32143"
],
"database_specific": {
"cwe_ids": [
"CWE-197"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T02:15:18Z",
"severity": "HIGH"
},
"details": "D-Link DAP-1360 webupg UPGCGI_CheckAuth Numeric Truncation Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1360 routers. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of requests to the /cgi-bin/webupg endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-18423.",
"id": "GHSA-7g6f-r888-776w",
"modified": "2024-05-03T03:30:50Z",
"published": "2024-05-03T03:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32143"
},
{
"type": "WEB",
"url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10324"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-535"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Ensure that no casts, implicit or explicit, take place that move from a larger size primitive or a smaller size primitive.
No CAPEC attack patterns related to this CWE.