Description
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.
Affected products
mozilla: firefox
References2
- www.mozilla.org/security/advisories/mfsa2025-39/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1951558 Permissions Required
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
- CWE
- CWE-939
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