🔐 CVE Alert

CVE-2025-3033

HIGH 7.7

Opening local .url files could lead to another file being opened

CVSS Score
7.7
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor mozilla
Product firefox
Ecosystems
Industries
Technology
Published Apr 1, 2025
Last Updated Apr 13, 2026
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Affected Versions

Mozilla / Firefox
All versions affected
Mozilla / Thunderbird
All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=1950056 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-20/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-23/

Credits

Ameen Basha M K