CVE-2023-29469

Name: CVE-2023-29469
Creator: NVD / NIST
Published: 2023-04-24T21:15:09.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.01%

Last modified Jun 17, 2026

CVE-2023-29469 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. EPSS estimates a 1.01% chance of exploitation in the next 30 days.

Description

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

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

1.01%

58.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Xmlsoft	Libxml2	< 2.10.4
Debian	Debian Linux	10.0

References

https://gitlab.gnome.org/GNOME/libxml2/-/issues/510Issue Tracking, Vendor Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4Release Notes
https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230601-0006/
https://gitlab.gnome.org/GNOME/libxml2/-/issues/510Issue Tracking, Vendor Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4Release Notes
https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230601-0006/

Timeline

Published: Apr 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29469?

How severe is CVE-2023-29469?

CVE-2023-29469 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29469?

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-2023-29469?

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

Scan your code now

Source: NVD / NIST