CVE-2025-3033
highpriority · track · 0EPSS 0.002 · 7 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0675Mozilla Firefox und Thunderbird: Mehrere SchwachstellenDeutsch2025-04-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um erhöhte Rechte zu erlangen, beliebigen Code auszuführen, Spoofing-Angriffe durchzuführen, einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen preiszugeben oder andere nicht spezifizierte Angriffe durchzuführen.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://bugzilla.mozilla.org/show_bug.cgi?id=1950056cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2025-3033cnnvd
- https://www.mozilla.org/security/advisories/mfsa2025-20/cnnvd
- https://www.mozilla.org/security/advisories/mfsa2025-23/cnnvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1950056enisa_euvd
- https://www.mozilla.org/security/advisories/mfsa2025-20/enisa_euvd
- https://www.mozilla.org/security/advisories/mfsa2025-23/enisa_euvd
- https://bugzilla.mozilla.org/show_bug.cgi?id=1950056Issue TrackingPermissions Requirednvd
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