Potential local code execution in “Copy as cURL” command
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.3%
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
Due to insufficient escaping of the newline character 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 vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1950001https://lists.debian.org/debian-lts-announce/2025/05/msg00043.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00046.htmlhttps://www.mozilla.org/security/advisories/mfsa2025-42/https://www.mozilla.org/security/advisories/mfsa2025-43/https://www.mozilla.org/security/advisories/mfsa2025-44/https://www.mozilla.org/security/advisories/mfsa2025-45/https://www.mozilla.org/security/advisories/mfsa2025-46/