CVE-2026-121843

EUVD-2026-120059
Privilege escalation in Firefox for iOS. This vulnerability was fixed in Firefox for iOS 160.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
References
https://bugzilla.mozilla.org/show_bug.cgi?id=2083030
https://www.mozilla.org/security/advisories/mfsa2026-124/