CVE-2026-25210

MEDIUM

6.9

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.

CVE Details

CVSS v3.1 Score6.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published1/30/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

libexpat_project:libexpat

Weaknesses (CWE)

CWE-190

References

https://github.com/libexpat/libexpat/pull/1075(cve@mitre.org)

https://github.com/libexpat/libexpat/pull/1075/commits/9c2d990389e6abe2e44527eeaa8b39f16fe859c7(cve@mitre.org)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.