CVE-2025-1932: Mozilla Firefox

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

Affected products

• Mozilla Firefox: before 128.8.0 (fixed in 128.8.0); before 136.0 (fixed in 136.0)
• Mozilla Thunderbird: from ], before 128.8.0 (fixed in 128.8.0); from 129.0, before 136.0 (fixed in 136.0)

Published 2025-03-04. Last modified 2026-10-05.