CVE-2026-109778 in Firefox

Riassunto

di MITRE • 13/10/2026

Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

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• Responsabile: Mozilla
• Prenotare: 13/10/2026
• Divulgazione: 13/10/2026
• Moderazione: accettato
• Voce: VDB-417662
• CPE: 20261013
• CWE: CWE-269 (confermato)
• CVSS: 6.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Attività: molto basso
• Settore: Industry, Insurance, ...

Fonti

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-109778
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-109778
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-109778/