Description
Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address. This vulnerability was fixed in Firefox for iOS 134.
References (2)
Core 2
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1419275
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-06/
Scores
CVSS v3
6.5
EPSS
0.0018
EPSS Percentile
7.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-346
Status
published
Products (2)
mozilla/firefox
< 134.0
Mozilla/Firefox for iOS
134
Published
Jan 11, 2025
Tracked Since
Feb 18, 2026