CVE-2025-2857 – Mozilla Firefox Windows IPC Sandbox Escape

The following table lists the changes that have been made to the
CVE-2025-2857 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Mar. 27, 2025

    Action Type Old Value New Value
    Added Description Following the sanbdox 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 into unpriviled 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.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1956398
    Added Reference https://issues.chromium.org/issues/405143032
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-19/
Share the Post:

Related Posts