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CVE-2025-3033

High

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.

SeverityHigh
CVSS7.7
Exploit probability—
ProductMozilla Firefox
PublishedApr 1, 2025
First seenApr 1, 2025
Weakness typeCWE-73CWE-73

How to fix

Update
  • mozilla firefox137.0 or later
  • mozilla thunderbird137.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 137.0137.0
mozilla thunderbirdv < 137.0137.0

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