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CVE-2025-49794

Medium

Elevated severity or exploit probability.

CVSS base
9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS — probability of exploitation (30 days)
0.8%
55.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-825
Published 2025-06-16 · modified 2026-09-18

Description

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

References

Official: NVD · CVE.org