CVE-2026-16379
Mozilla Firefox, Thunderbird, firefox
Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
- CVSS
- 8.8
- EPSS
- 0.28% 20.1% percentile
- CISA KEV
- Not listed
- Published
- 2026.07.21