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.
References7
- access.redhat.com/errata/RHSA-2025:10630
- access.redhat.com/errata/RHSA-2025:19020
- access.redhat.com/errata/RHSA-2026:7519
- access.redhat.com/security/cve/CVE-2025-49795
- bugzilla.redhat.com/show_bug.cgi?id=2372379
- gitlab.gnome.org/GNOME/libxml2/-/issues/932
- cert-portal.siemens.com/productcert/html/ssa-253495.html
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 49 · as of 7 November 2026
- CWE
- CWE-825
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.