🛡️ CVE-2025-49795 — libxml2

🟠 CVSS 7.5 — High ✅ No Known Exploit NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2025-49795 is recorded against 2 packages.

  • libxml2
  • unknown

Timeline and source

Published on 16 June 2025 and last revised on 16 April 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

access.redhat.com (Advisory)
bugzilla.redhat.com (Report)
access.redhat.com (Web)
security-tracker.debian.org (Advisory)

CVE-2025-49795 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-06-16
Updated 2026-08-11
Modified 2026-04-16
Fix URL N/A

Affected Packages

Software From version Fixed in
libxml2 — —
unknown — —

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