ReviewHigh
CVE-2026-74977
Mozilla Firefox, Thunderbird, firefox
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
- CVSS
- 7.5
- EPSS
- - - percentile
- CISA KEV
- Not listed
- Published
- 2026.08.18