CVE-2026-74966
highpriority · track · 0EPSS 0.004 · 38 %ileDEUSEPSS · scored 2026-10-27
Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (24)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2911Mozilla Firefox, Firefox ESR und Thunderbird: Mehrere SchwachstellenDeutsch2026-08-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Firefox ESR und Thunderbird ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Spoofing- oder Clickjacking-Angriffe durchzuführen oder Denial-of-Service-Zustände herbeizuführen.
sources
Which sources assert this record, and when.
references (5) nvd
External citations — patches, advisories, analysis.
- https://bugzilla.mozilla.org/show_bug.cgi?id=2054776Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-74/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-77/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-78/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-80/Vendor Advisory
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