In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.

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History

Tue, 03 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 31 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
Title libexpat: libexpat: Information disclosure and data integrity issues due to integer overflow in buffer reallocation
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 30 Jan 2026 07:15:00 +0000

Type Values Removed Values Added
Description In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
First Time appeared Libexpat Project
Libexpat Project libexpat
Weaknesses CWE-190
CPEs cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Vendors & Products Libexpat Project
Libexpat Project libexpat
References
Metrics cvssV3_1

{'score': 6.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-02-03T16:42:10.810Z

Reserved: 2026-01-30T06:40:27.642Z

Link: CVE-2026-25210

cve-icon Vulnrichment

Updated: 2026-02-03T15:53:38.257Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-30T07:16:15.570

Modified: 2026-02-04T16:34:21.763

Link: CVE-2026-25210

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-01-30T06:40:27Z

Links: CVE-2026-25210 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses