CVE - CVE-2025-2857

CVE-ID
CVE-2025-2857	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:CVE-2025-2783 URL:https://issues.chromium.org/issues/405143032 MISC:CVE-2025-2783 URL:https://www.cve.org/CVERecord?id=CVE-2025-2783 MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 MISC:https://www.mozilla.org/security/advisories/mfsa2025-19/ URL:https://www.mozilla.org/security/advisories/mfsa2025-19/
Assigning CNA
Mozilla Corporation
Date Record Created
20250327	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250327)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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