CVE-2025-24855
libxslt: Use-After-Free in libxslt numbers.c
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 14, 2025
Updated · October 13, 2026
Description
A flaw was found in libxslt numbers.c. This vulnerability allows a use-after-free, potentially leading to memory corruption or code execution via nested XPath evaluations where an XPath context node can be modified but not restored.
Statement
The use-after-free vulnerability in libxslt marked as a high severity rather than moderate due to its potential impact on system integrity and availability. This flaw arises during nested XPath evaluations where the context node can be modified without proper restoration, leading to use-after-free conditions. Exploitation of this vulnerability allows an attacker to execute arbitrary code, potentially causing significant disruptions or unauthorized actions within the affected system.
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 · 7.8CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
CWE-416 · Use After Free