What’s Vulnerable › Vulnerabilities

CVE-2023-45322

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-06 · updated 2026-10-15
• Weakness: CWE-416

Description

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: through 2.11.5

References

• http://www.openwall.com/lists/oss-security/2023/10/06/5
• https://gitlab.gnome.org/GNOME/libxml2/-/issues/344
• https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
• http://www.openwall.com/lists/oss-security/2023/10/06/5
• https://gitlab.gnome.org/GNOME/libxml2/-/issues/344
• https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
• https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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