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."
CVE-2023-45322
MEDIUMNVD 6.5
6.5
- CVSS v3
- 6.5
- EG Score
- —
- EPSS
- —
- KEV
- Not listed
Published
October 6, 2023
Last Modified
November 3, 2025
References (7)
- cve@mitrehttp://www.openwall.com/lists/oss-security/2023/10/06/5
- cve@mitrehttps://gitlab.gnome.org/GNOME/libxml2/-/issues/344
- cve@mitrehttps://gitlab.gnome.org/GNOME/libxml2/-/issues/583
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/06/5
- af854a3a-2127-422b-91ae-364da2661108https://gitlab.gnome.org/GNOME/libxml2/-/issues/344
- af854a3a-2127-422b-91ae-364da2661108https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html
Vendor Advisories for CVE-2023-45322(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(4)
What is CVE-2023-45322?
CVE-2023-45322 is a medium vulnerability published on October 6, 2023. 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…
When was CVE-2023-45322 disclosed?
CVE-2023-45322 was first published in the National Vulnerability Database on October 6, 2023, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2023-45322?
CVE-2023-45322 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2023-45322?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-45322, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-45322
Is Your Infrastructure Affected by CVE-2023-45322?
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