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CVE-2025-3033

Date: April 1, 2025

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 affects Firefox < 137 and Thunderbird < 137.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2025-3033
https://bugzilla.mozilla.org/show_bug.cgi?id=1950056
https://www.mozilla.org/security/advisories/mfsa2025-23/
https://www.mozilla.org/security/advisories/mfsa2025-20/
https://www.mend.io/vulnerability-database/CVE-2025-3033

Severity Score

Weakness Type (CWE)

External Control of File Name or Path

CWE-73

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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