CVE-2026-8389
JIT miscompilation in the JavaScript Engine: JIT component
HIGH 7.5EPSS 0.5%
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
- Affected
- Mozilla · Firefox
- CVSS v3.1 CNA
- 7.5 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS v3.1 CNA
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.46% chance of exploitation in the next 30 days, 38th percentile
- Published
- 2026-05-12
- Updated
- 2026-07-15
Proof-of-concept exploits (1)
- crixpwn/CVE-2026-838940★ · 2026-06-04