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CVE-2025-49794

9.1 CRITICAL

A use-after-free vulnerability was found in libxml2

Published: 2025-06-16 · Last updated: 2026-06-02

Severity and scoring

CVSS
9.1 CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
CWE-825

Description

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

Source: NVD

References

Related CVEs

Same CWE

  • CVE-2026-8854 — IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache (7.5 HIGH)
  • CVE-2026-34001 — A flaw was found in the X.Org X server (7.8 HIGH)
  • CVE-2025-61664 — A vulnerability in the GRUB2 bootloader has been identified in the normal module (4.9 MEDIUM)
  • CVE-2025-54771 — A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader) (4.9 MEDIUM)
  • CVE-2025-54770 — A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk (4.9 MEDIUM)