{"id":"CVE-2023-45322","title":"libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails","summary":"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 …","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"xmlsoft","product":"libxml2","affected":["libxml2 <= 2.11.5"],"published":"2023-10-06","updated":"2026-10-15","sourceUpdated":"2026-10-15T00:16:38.260","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-45322","references":[{"url":"http://www.openwall.com/lists/oss-security/2023/10/06/5","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/344","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/583","label":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2023/10/06/5","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/344","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/583","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00965,"epssPercentile":0.60893,"ingestedAt":"2026-10-15T01:08:04.208Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-19T18:12:15.161434Z"},"slug":"CVE-2023-45322","body":"## Overview\n\nlibxml2 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.\"\n\n## Affected\n\n- `libxml2 <= 2.11.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}