CVE-2025-49795
Published: June 12, 2025Last modified: December 23, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | libxml2 | Fixed (2.10.4-r6) |
| 25 LTS | libxml2 | Fixed (2.13.8-r2) | |
| Stream | libxml2 | Fixed (2.13.8-r2) | |
| Hardened Containers | 23 LTS | libxml2 | Fixed (2.10.4-r6) |
| 25 LTS | libxml2 | Fixed (2.13.8-r2) | |
| Stream | libxml2 | Fixed (2.13.8-r2) |
References
- https://access.redhat.com/errata/RHSA-2025:10630
- https://access.redhat.com/errata/RHSA-2025:19020
- https://access.redhat.com/errata/RHSA-2026:7519
- https://access.redhat.com/security/cve/CVE-2025-49795
- https://bugzilla.redhat.com/show_bug.cgi?id=2372379
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/932