MajorCritical vulnerability
CVE-2026-121842 (CVSS 8.8)
NVD · officialPublished Nov 9, 2026Risk 37/100
Privilege escalation in the Reader View component in Firefox for iOS. This vulnerability was fixed in Firefox for iOS 160.0.
Technical details
CVSS
8.8
AV:NetworkAC:LowPR:NoneUI:RequiredC:HighI:HighA:High
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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