CVE-2025-27113
libxml2: NULL Pointer Dereference in libxml2 xmlPatMatch
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 18, 2025
Updated · September 1, 2026
Description
A flaw was found in libxml2. This vulnerability allows a NULL pointer dereference, leading to a potential crash or denial of service via a crafted XML pattern.
Statement
Because this vulnerability requires that an unsuspecting user parses a specially crafted malicious XML file, or that a service that does so accepts untrusted input, and because the consequences of this flaw are limited to exhaustion of the resources available to the user with whose privileges the vulnerable application is run, Red Hat assesses this vulnerability's impact as Low.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 3.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE-476 · NULL Pointer Dereference