CVE-2023-45322: Xmlsoft LIBXML2

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."

Affected products

• Xmlsoft LIBXML2: up to and including 2.11.5

Published 2023-10-06. Last modified 2026-06-17.