CVE-2025-4084: medium-severity vulnerability in Mozilla Firefox
Potential local code execution in "copy as cURL" command
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.7epss 0.4%
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 was fixed in Firefox ESR 128.10, Firefox ESR 115.23, and Thunderbird 128.10.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
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References
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198https://lists.debian.org/debian-lts-announce/2025/05/msg00022.htmlhttps://www.mozilla.org/security/advisories/mfsa2025-29/https://www.mozilla.org/security/advisories/mfsa2025-30/https://www.mozilla.org/security/advisories/mfsa2025-32/