Description
Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4.
Scores
CVSS v3
9.8
EPSS
0.0006
EPSS Percentile
19.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-451
Status
published
Products (2)
mozilla/firefox
< 147.4
Mozilla/Firefox for iOS
147.4
Published
Feb 24, 2026
Tracked Since
Feb 24, 2026