Use-after-free in Libxml2 - CVE-2025-12863
Published: November 12, 2025
Vulnerability identifier: #VU118345
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-12863
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the xmlSetTreeDoc() function. A remote attacker can perform a denial of service (DoS) attack.
Affected software
Libxml2
How to mitigate CVE-2025-12863
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.