CVE-2026-9078
Firefox iOS RTL Domain Rendering Issue in Link Preview
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
25 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Affected products
Mozilla · Firefox for iOSWant to know if your infrastructure is exposed to this?
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