#VU111221 Use-after-free in Libxml2 - CVE-2025-49794

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Main Vulnerability Database Vulnerabilities #VU111221

#VU111221 Use-after-free in Libxml2 - CVE-2025-49794

Published: June 17, 2025 / Updated: July 11, 2025


Vulnerability identifier: #VU111221
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-49794
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Libxml2
Software vendor:
Gnome Development Team

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the xmlSchematronGetNode() function when processing XPath expressions in Schematron schema elements schematron.c. A remote attacker can pass specially crafted XML input to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links