CVE-2023-39615

Name: CVE-2023-39615
Creator: NVD / NIST
Published: 2023-08-29T17:15:12.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2023-39615 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

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

0.67%

47.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Xmlsoft	Libxml2	2.11.0

References

https://gitlab.gnome.org/GNOME/libxml2/-/issues/535Exploit, Issue Tracking, Patch
https://gitlab.gnome.org/GNOME/libxml2/-/issues/535Exploit, Issue Tracking, Patch
https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html

Timeline

Published: Aug 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39615?

How severe is CVE-2023-39615?

CVE-2023-39615 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39615?

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-2023-39615?

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

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Source: NVD / NIST