CVE-2023-45322

Name: CVE-2023-45322
Creator: NVD / NIST
Published: 2023-10-06T22:15:11.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2023-45322 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

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."

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.83%

52.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Xmlsoft	Libxml2	<= 2.11.5

References

http://www.openwall.com/lists/oss-security/2023/10/06/5Mailing List, Patch, Third Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/344Issue Tracking, Patch, Vendor Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/583Issue Tracking, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/10/06/5Mailing List, Patch, Third Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/344Issue Tracking, Patch, Vendor Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/583Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html

Timeline

Published: Oct 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45322?

How severe is CVE-2023-45322?

CVE-2023-45322 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45322?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45322?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST