CVEs-PoC/2025/CVE-2025-2857.md

CVE-2025-2857

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 affects Firefox < 136.0.4, Firefox ESR < 128.8.1, and Firefox ESR < 115.21.1.

POC

Reference

No PoCs from references.

Github

• https://github.com/Leviticus-Triage/ChromSploit-Framework
• https://github.com/nomi-sec/PoC-in-GitHub
• https://github.com/plzheheplztrying/cve_monitor