CVE-2025-3033

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1950056	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-20/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-23/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

History

30 Sep 2026, 19:10

Type	Values Removed	Values Added
Summary	(es) Tras seleccionar un acceso directo malicioso de Windows `.url` desde el sistema de archivos local, podría cargarse un archivo inesperado. Este error solo afecta a Firefox en Windows. Otros sistemas operativos no se ven afectados. Esta vulnerabilidad afecta a Firefox (versión anterior a la 137) y Thunderbird (versión anterior a la 137).	(es) Tras seleccionar un acceso directo malicioso de Windows '.url' desde el sistema de archivos local, podría cargarse un archivo inesperado. Este error solo afecta a Firefox en Windows. Otros sistemas operativos no se ven afectados.* Esta vulnerabilidad afecta a Firefox (versión anterior a la 137) y Thunderbird (versión anterior a la 137).

Information

Published : 2025-04-01 13:15

Updated : 2026-09-30 19:10

NVD link : CVE-2025-3033

Mitre link : CVE-2025-3033

CVE.ORG link : CVE-2025-3033

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-73

External Control of File Name or Path

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