Description
After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
Scores
CVSS v3
7.7
EPSS
0.0008
EPSS Percentile
22.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-73
Status
published
Products (4)
mozilla/firefox
< 137.0
Mozilla/Firefox
137
mozilla/thunderbird
< 137.0
Mozilla/Thunderbird
137
Published
Apr 01, 2025
Tracked Since
Feb 18, 2026