CVE-2025-2857
Critical · CVSS 10.0- CVSS
- 10.0
- nvd
- EPSS
- 1.94%
- 79th pct
- KEV
- No
- Class
- other
- NVD-CWE-noinfo, CWE-668
Description
Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. The original vulnerability was being exploited in the wild. *This only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 136.0.4, Firefox ESR 128.8.1, and Firefox ESR 115.21.1.
References
Status: profiled · ingested 2026-10-05T18:00:53.000Z