- What: Memory safety bugs have been identified in Firefox and Thunderbird.
- Impact: Users of Firefox and Thunderbird may be vulnerable to exploitation.
Memory safety bugs present in Firefox 146 and Thunderbird... Critical severity Unreviewed Published Jan 13, 2026 to the GitHub Advisory Database • Updated Jan 15, 2026 Package No package listed — Suggest a package Affected versions Unknown Patched versions Unknown Published by the National Vulnerability Database Jan 13, 2026 Published to the GitHub Advisory Database Jan 13, 2026 Last updated Jan 15, 2026