CVE-2025-26462: Google Android Privilege Escalation Flaw

CVE-2025-26462 Overview

CVE-2025-26462 is a local privilege escalation vulnerability in Google Android. The flaw resides in AccessibilityServiceConnection.java within the Android framework. A logic error in the code permits a background activity launch that should be blocked by platform restrictions. Attackers can leverage this behavior to escalate privileges locally without any additional execution rights. Exploitation requires no user interaction. The issue affects Android 13, 14, and 15, and is addressed in the June 2025 Android Security Bulletin. This weakness is categorized under [CWE-269] Improper Privilege Management.

Critical Impact
A local attacker with low privileges can trigger a background activity launch that leads to escalation of privilege on affected Android devices without user interaction.

Affected Products

Google Android 13
Google Android 14
Google Android 15

Discovery Timeline

2025-06-01 - Fix published in the Android Security Bulletin
2025-09-04 - CVE-2025-26462 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-26462

Vulnerability Analysis

The vulnerability exists in AccessibilityServiceConnection.java, a component of the Android framework that manages the lifecycle and permissions of bound accessibility services. Android enforces background activity launch (BAL) restrictions to prevent apps from starting activities while not in the foreground. This control is a core defense against tapjacking, overlay abuse, and stealthy privilege escalation.

A logic error in the connection component allows an activity launch path that bypasses BAL enforcement. An attacker holding low local privileges can invoke the flawed code path to start a privileged activity in the background. The launched activity executes in a context that grants elevated capabilities beyond what the calling app should possess. The vulnerability is tracked as [CWE-269] Improper Privilege Management.

Root Cause

The root cause is a flawed authorization check in AccessibilityServiceConnection.java. The code fails to correctly validate whether the caller should be permitted to launch an activity in the background through the accessibility service binding. This gap allows a low-privileged process to piggyback on the accessibility connection to bypass BAL protections.

Attack Vector

Exploitation requires local access with low privileges, such as an installed malicious app. The attacker interacts with the accessibility service binding to trigger the vulnerable code path. No user interaction is required. Once triggered, the background activity launches with elevated privileges, giving the attacker control over resources normally isolated from unprivileged apps. The vulnerability described in AccessibilityServiceConnection.java is fixed by the Android framework commit referenced in the Android Code Change Notification.

Detection Methods for CVE-2025-26462

Indicators of Compromise

Applications requesting BIND_ACCESSIBILITY_SERVICE without a legitimate accessibility use case
Unexpected activity launches originating from background processes shortly after accessibility service binding events
Third-party apps interacting with AccessibilityServiceConnection APIs on unpatched Android 13, 14, or 15 devices

Detection Strategies

Inventory installed applications that declare accessibility service usage and review them against approved MDM baselines
Correlate ActivityTaskManager and AccessibilityManagerService log entries for background activity starts tied to accessibility bindings
Flag devices running Android 13, 14, or 15 that have not applied the 2025-06-01 security patch level

Monitoring Recommendations

Use enterprise mobility management (EMM) or MDM policies to alert on side-loaded apps requesting accessibility permissions
Monitor Android security patch level (ro.build.version.security_patch) across the fleet and alert on values earlier than 2025-06-01
Enable Google Play Protect and review Play Protect telemetry for potentially harmful applications abusing accessibility APIs

How to Mitigate CVE-2025-26462

Immediate Actions Required

Apply the June 2025 Android security patch (2025-06-01 security patch level) to all affected devices
Restrict installation of applications from unknown sources through MDM policies
Audit and revoke accessibility service permissions granted to unverified third-party apps
Prioritize patching for Android 13, 14, and 15 devices used to access corporate resources

Patch Information

Google addressed CVE-2025-26462 in the Android Security Bulletin June 2025. The framework fix is available in the AOSP commit referenced by the Android Code Change Notification. Device manufacturers ship the fix through carrier and OEM over-the-air updates tied to the 2025-06-01 security patch level.

Workarounds

Disable or uninstall untrusted applications that hold accessibility service permissions until patches are deployed
Enforce MDM policies that block installation of APKs from unknown sources
Require devices to meet the 2025-06-01 or later security patch level as a conditional access requirement

bash

# Verify Android security patch level on a device via adb
adb shell getprop ro.build.version.security_patch
# Expected output for patched devices: 2025-06-01 or later

# List applications that hold accessibility service bindings
adb shell settings get secure enabled_accessibility_services