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Vulnerabilities of Mozilla Firefox for iOS

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CVE Summary Score Published
CVE-2026-116631 A malicious web page could open a tel link in a window that was showing a different website, causing the phone-call… 5.4 Medium Oct 26, 2026
CVE-2026-116632 A malicious web page could insert arbitrary text into the FaceTime call prompt shown by iOS, potentialy allowing it to… 5.4 Medium Oct 26, 2026
CVE-2026-103417 Firefox for iOS could autofill saved credentials into a new page if cross-origin navigation occurred while the… 5.5 Medium Oct 13, 2026
CVE-2026-103418 Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing… 8.8 High Oct 13, 2026
CVE-2026-86853 A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application… 4.3 Medium Sep 8, 2026
CVE-2026-81267 A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the… 5.4 Medium Aug 31, 2026
CVE-2026-14906 Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within… 5.3 Medium Jul 13, 2026
CVE-2026-13356 A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the… 6.3 Medium Jul 6, 2026
CVE-2026-53900 Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in… 4.3 Medium Jun 16, 2026
CVE-2026-53899 Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a… 6.5 Medium Jun 16, 2026
CVE-2026-9309 Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata 5.4 Medium Jun 1, 2026
CVE-2026-9308 Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders 5.4 Medium Jun 1, 2026
CVE-2026-9078 Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in… 5.4 Medium May 25, 2026
CVE-2026-8706 Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same… 6.5 Medium May 19, 2026
CVE-2026-2634 Malicious scripts could cause desynchronization between the address bar and web content before a response is received in… 9.8 Critical Feb 24, 2026
CVE-2026-2032 Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page… 4.3 Medium Feb 16, 2026
CVE-2025-14744 Unicode RTLO characters could allow malicious websites to spoof filenames in the downloads UI for Firefox for iOS,… 6.5 Medium Dec 18, 2025
CVE-2025-10859 Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing… 4.0 Medium Sep 30, 2025
CVE-2025-55029 Malicious scripts could bypass the popup blocker to spam new tabs, potentially resulting in denial of service attacks 7.5 High Aug 19, 2025
CVE-2025-55031 Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport 9.8 Critical Aug 19, 2025
CVE-2025-55028 Malicious scripts utilizing repetitive JavaScript alerts could prevent client user interaction in some scenarios and… 6.5 Medium Aug 19, 2025
CVE-2025-55030 Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the… 6.1 Medium Aug 19, 2025
CVE-2025-54145 The QR scanner could allow arbitrary websites to be opened if a user was tricked into scanning a malicious link that… 9.1 Critical Aug 19, 2025
CVE-2025-54144 The URL scheme used by Firefox to facilitate searching of text queries could incorrectly allow attackers to open… 5.4 Medium Aug 19, 2025
CVE-2025-54143 Sandboxed iframes on webpages could potentially allow downloads to the device, bypassing the expected sandbox… 9.8 Critical Aug 19, 2025

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