{"id":64333,"date":"2025-08-26T16:31:35","date_gmt":"2025-08-26T16:31:35","guid":{"rendered":""},"modified":"2025-10-01T17:38:42","modified_gmt":"2025-10-01T23:38:42","slug":"cve-2025-55031-critical-bluetooth-vulnerability-in-firefox-for-ios-exploiting-fido-links","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55031-critical-bluetooth-vulnerability-in-firefox-for-ios-exploiting-fido-links\/","title":{"rendered":"<strong>CVE-2025-55031: Critical Bluetooth Vulnerability in Firefox for iOS Exploiting FIDO Links<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-55031 is a critical vulnerability in Firefox for iOS that allows malicious actors to exploit FIDO links and compromise user accounts. This vulnerability poses a significant risk to users of Firefox for iOS as it provides an attacker with the ability to trick a user into using their passkey to log the attacker&#8217;s computer into the target account, potentially leading to system compromise or data leakage.<br \/>\nThis <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8037-high-risk-cookie-vulnerability-in-firefox-and-thunderbird\/\"  data-wpil-monitor-id=\"71846\">vulnerability<\/a> is particularly concerning due to the widespread use of Firefox on iOS devices and the severity of the potential impact. It underscores the importance of maintaining up-to-date security patches and highlights the potential risks associated with <a href=\"https:\/\/www.ameeba.com\/blog\/ameeba-chat-secure-communication-in-times-of-civil-unrest-surveillance-and-collapse\/\"  data-wpil-monitor-id=\"86945\">Bluetooth<\/a> communication.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-55031<br \/>\nSeverity: Critical (CVSS: 9.8)<br \/>\nAttack Vector: Bluetooth<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: System compromise and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53495-unauthorized-access-data-leakage-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72625\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2162125413\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>Firefox for iOS | < 142\nFocus for iOS | < 142\n\n<strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8028-critical-vulnerability-in-firefox-and-thunderbird-due-to-incorrect-computation-of-branch-address\/\"  data-wpil-monitor-id=\"73782\">vulnerability involves the use of FIDO links passed via Firefox<\/a> for iOS to the operating system. A malicious actor, within Bluetooth range, could create a malicious page that uses FIDO links to trick the user into using their passkey for the attacker&#8217;s benefit. The attacker could then use this passkey to log into the target account from their computer.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Since this is a Bluetooth-based exploit, the example cannot be represented in standard HTTP requests or shell commands. However, a conceptual representation of the exploit could look like this:<\/p><div id=\"ameeb-3215995499\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<pre><code class=\"\" data-line=\"\">if victimWithinBluetoothRange {\ncreateMaliciousPageWithFIDOlink;\npromptUserToEnterPasskey;\nreceiveUserPasskey;\nusePasskeyToLogin(victimAccount);\n}<\/code><\/pre>\n<p>This pseudocode represents the attacker&#8217;s actions. They first check whether the victim is within Bluetooth range. If the victim is within range, they create a malicious page with a FIDO link. They then prompt the user to enter their passkey, receive the entered passkey, and use it to log into the victim&#8217;s account.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-55031 is a critical vulnerability in Firefox for iOS that allows malicious actors to exploit FIDO links and compromise user accounts. This vulnerability poses a significant risk to users of Firefox for iOS as it provides an attacker with the ability to trick a user into using their passkey to log the attacker&#8217;s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[77],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64333","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apple"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=64333"}],"version-history":[{"count":4,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64333\/revisions"}],"predecessor-version":[{"id":79790,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64333\/revisions\/79790"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64333"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64333"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64333"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64333"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64333"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64333"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}