CVE-2026-4688
Mozilla Firefox, Thunderbird, Red Hat Enterprise Linux 10
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- CVSS
- 10
- EPSS
- 0.53% 41.9% percentile
- CISA KEV
- Not listed
- Published
- 2026.03.24