Review reviewHigh
CVE-2026-12317
Mozilla Firefox, Thunderbird, firefox
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
- CVSS
- 7.5
- EPSS
- 0.29% 21.1% percentile
- CISA KEV
- Not listed
- Published
- 2026.06.16