CVE-2025-2857

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-2857
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.
CVSS

No CVSS.

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 Permissions Required
https://issues.chromium.org/issues/405143032 Permissions Required
https://www.cve.org/CVERecord?id=CVE-2025-2783 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2025-19/ Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
History

01 May 2025, 19:31

Type Values Removed Values Added
CWE NVD-CWE-noinfo
First Time Mozilla firefox
Mozilla
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 - () https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2025-19/ - () https://www.mozilla.org/security/advisories/mfsa2025-19/ - Vendor Advisory
References () https://issues.chromium.org/issues/405143032 - () https://issues.chromium.org/issues/405143032 - Permissions Required
References () https://www.cve.org/CVERecord?id=CVE-2025-2783 - () https://www.cve.org/CVERecord?id=CVE-2025-2783 - Third Party Advisory

27 Mar 2025, 20:15

Type Values Removed Values Added
Summary Following the sandbox escape in CVE-2025-2783, various Firefox developers identified a similar pattern in our IPC code. Attackers were able to confuse the parent process into leaking handles to unprivileged child processes 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. 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
  • () https://www.cve.org/CVERecord?id=CVE-2025-2783 -

27 Mar 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-27 14:15

Updated : 2025-05-01 19:31

NVD link : CVE-2025-2857

Mitre link : CVE-2025-2857

JSON object : View

Products Affected

mozilla

  • firefox
CWE
NVD-CWE-noinfo