CVE-2026-92078
Denial-of-service in the Security component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- Published Sep 15, 2026
- CVSS 6.5 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available