{"id":85316,"date":"2025-11-01T17:49:46","date_gmt":"2025-11-01T17:49:46","guid":{"rendered":""},"modified":"2025-11-03T21:09:27","modified_gmt":"2025-11-04T03:09:27","slug":"cve-2025-26431-escalation-of-privilege-vulnerability-in-accessibility-services","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-26431-escalation-of-privilege-vulnerability-in-accessibility-services\/","title":{"rendered":"<strong>CVE-2025-26431: Escalation of Privilege Vulnerability in Accessibility Services<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The identified vulnerability, CVE-2025-26431, is a potential threat that lies within the setupAccessibilityServices of AccessibilityFragment.java. It is a significant cybersecurity concern as it exposes systems to local privilege escalation, which could lead to unauthorized system compromise or data leakage. Given the absence of user interaction for exploitation, this vulnerability presents a serious risk as it can be <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48817-exploiting-relative-path-traversal-in-remote-desktop-clients\/\"  data-wpil-monitor-id=\"92336\">exploited remotely<\/a> without any user awareness.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-26431<br \/>\nSeverity: High (7.8\/10)<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=\"92154\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3054407528\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>AccessibilityFragment.java | All versions prior to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30310-type-confusion-vulnerability-in-dreamweaver-desktop-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"92110\">vulnerability arises from a logic error in the code<\/a> of setupAccessibilityServices within AccessibilityFragment.java. The issue allows an attacker to hide an enabled accessibility service, which could lead to local <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6934-privilege-escalation-vulnerability-in-opal-estate-pro-wordpress-plugin\/\"  data-wpil-monitor-id=\"92274\">escalation of privileges<\/a>. The attacker does not require any additional <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37099-remote-code-execution-vulnerability-in-hpe-insight-remote-support\/\"  data-wpil-monitor-id=\"92112\">execution privileges and can exploit the vulnerability<\/a> without any user interaction, making this a dangerous and stealthy exploit.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-496286676\" 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>Given the nature of the vulnerability, an exploit could potentially involve a malicious actor <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49029-code-injection-vulnerability-in-bitto-kazi-custom-login-and-signup-widget\/\"  data-wpil-monitor-id=\"92200\">injecting code<\/a> into the accessibility service to gain escalated privileges. This could look something like the following pseudocode:<\/p>\n<pre><code class=\"\" data-line=\"\">AccessibilityServiceInfo exploitService = new AccessibilityServiceInfo();\nexploitService.id = &quot;com.example.maliciousapp\/.MyAccessibilityService&quot;;\nexploitService.eventTypes = AccessibilityEvent.TYPES_ALL_MASK;\nexploitService.feedbackType = AccessibilityServiceInfo.FEEDBACK_GENERIC;\nAccessibilityManager am = (AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE);\nam.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_GENERIC);\nif (exploitService.isEnabled()) {\nam.disableAccessibilityService(exploitService);\nam.enableAccessibilityService(exploitService);\n}<\/code><\/pre>\n<p>This pseudocode demonstrates a potential way an attacker may exploit this vulnerability. First, the attacker creates a malicious accessibility service, then checks if the service is already enabled. If the service is enabled, the attacker disables and then re-enables it, effectively hiding the service from the user and allowing for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32463-critical-privilege-escalation-vulnerability-in-sudo\/\"  data-wpil-monitor-id=\"92371\">privilege escalation<\/a>.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>It is recommended to apply the vendor patch as soon as it is available. Until the patch is applied, use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation. These measures will help to prevent the exploit from being leveraged and reduce the risk associated with this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The identified vulnerability, CVE-2025-26431, is a potential threat that lies within the setupAccessibilityServices of AccessibilityFragment.java. It is a significant cybersecurity concern as it exposes systems to local privilege escalation, which could lead to unauthorized system compromise or data leakage. Given the absence of user interaction for exploitation, this vulnerability presents a serious risk as [&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":[],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-85316","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85316","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=85316"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85316\/revisions"}],"predecessor-version":[{"id":85596,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85316\/revisions\/85596"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=85316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=85316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=85316"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=85316"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=85316"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=85316"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=85316"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=85316"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=85316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}