CVE-2025-4084
Potential local code execution in "copy as cURL" command
5.7CVSSMEDIUM
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 was fixed in Firefox ESR 128.10, Firefox ESR 115.23, and Thunderbird 128.10.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:RUser InteractionRequired
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
and 11 more affected products View all →
Exploitability
Official Patch Available
References
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-29/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-30/
mozilla.org
and 7 more references View all →
Timeline
Published
Apr 29, 2025
Last Updated
Apr 13, 2026
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