CVE-2025-4084 – “Firefox/Thunderbird Escaping Vulnerability (Local Code Execution)”

The following table lists the changes that have been made to the
CVE-2025-4084 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]

    Apr. 29, 2025

    Action Type Old Value New Value
    Added Description Due to insufficient escaping of the special characters in the “copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user’s system.
    *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.* This vulnerability affects Firefox ESR < 128.10, Firefox ESR < 115.23, and Thunderbird ESR < 128.10.
    Added Reference https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-29/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-30/
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-32/
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