{"id":85080,"date":"2025-10-29T23:43:07","date_gmt":"2025-10-29T23:43:07","guid":{"rendered":""},"modified":"2025-11-02T03:01:44","modified_gmt":"2025-11-02T09:01:44","slug":"cve-2025-32331-keyguardservice-bypass-vulnerability-in-app-pinning","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-32331-keyguardservice-bypass-vulnerability-in-app-pinning\/","title":{"rendered":"<strong>CVE-2025-32331: KeyguardService Bypass Vulnerability In App Pinning<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-32331 vulnerability exposes a flaw in the showDismissibleKeyguard function of KeyguardService.java, allowing potential attackers to bypass app pinning due to a logic error in the code. This kind of vulnerability could lead to local escalation of privilege without requiring additional execution privileges, posing a significant security risk to any system using the affected versions of the software. Immediate action is necessary to prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30376-heap-based-buffer-overflow-in-microsoft-office-excel-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"91954\">potential system<\/a> compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-32331<br \/>\nSeverity: High (7.8 CVSS score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41667-potential-system-compromise-via-file-access-exploitation\/\"  data-wpil-monitor-id=\"92176\">Potential system compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-960452067\" 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>Android OS | 10.0, 11.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by taking advantage of a logic error in the showDismissibleKeyguard function of KeyguardService.java. This error allows an attacker to bypass the app pinning feature, which is designed to keep a user within a specific app until a pin is entered. By bypassing this feature, a malicious actor could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20684-potential-escalation-of-privilege-in-wlan-ap-driver\/\"  data-wpil-monitor-id=\"91933\">potentially gain escalated privileges<\/a> on the local device without any need for additional execution privileges or user interaction.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-353681424\" 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<p>Below is a conceptual example of how the vulnerability could be exploited with pseudocode:<\/p>\n<pre><code class=\"\" data-line=\"\">public void exploitCVE202532331() {\n\/\/ Bypass the app pinning feature\nKeyguardService.dismissibleKeyguard(false);\n\/\/ Perform malicious actions with escalated privileges\nperformMaliciousActions();\n}<\/code><\/pre>\n<p>This pseudocode represents the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20685-wlan-ap-driver-vulnerability-leading-to-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"91973\">potential actions an attacker could take to exploit the vulnerability<\/a>. The actual exploit would depend on the specific circumstances and the malicious actor&#8217;s objectives.<br \/>\nTo mitigate this vulnerability, it is strongly recommended to apply the vendor&#8217;s patch as soon as it becomes available or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-32331 vulnerability exposes a flaw in the showDismissibleKeyguard function of KeyguardService.java, allowing potential attackers to bypass app pinning due to a logic error in the code. This kind of vulnerability could lead to local escalation of privilege without requiring additional execution privileges, posing a significant security risk to any system using the affected [&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":[91],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-85080","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-google","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85080","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=85080"}],"version-history":[{"count":4,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85080\/revisions"}],"predecessor-version":[{"id":85388,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85080\/revisions\/85388"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=85080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=85080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=85080"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=85080"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=85080"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=85080"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=85080"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=85080"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=85080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}