CVE-2025-26422
📋 TL;DR
This vulnerability allows local attackers to execute the dumpsys command without proper permissions due to a missing permission check in WindowManagerService. It affects Android devices running vulnerable versions, enabling local privilege escalation without user interaction.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains elevated system privileges, potentially accessing sensitive system information, modifying system settings, or performing other privileged operations.
Likely Case
Local attackers extract system diagnostic information they shouldn't have access to, potentially revealing sensitive configuration details or user data.
If Mitigated
With proper permission controls, the dumpsys command executes only with appropriate privileges, limiting information exposure.
🎯 Exploit Status
Requires local access and knowledge of Android system internals; no public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android May 2025 security update or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-05-01
Restart Required: No
Instructions:
1. Apply the May 2025 Android security update. 2. For custom ROMs, apply the framework patch from the Android source repository. 3. Verify the patch is applied by checking system version.
🔧 Temporary Workarounds
Restrict local access
allLimit physical and local access to devices through device management policies
🧯 If You Can't Patch
- Implement strict app vetting and installation controls to prevent malicious local apps
- Use mobile device management (MDM) solutions to monitor for suspicious dumpsys activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If before May 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level shows May 2025 or later in device settings.📡 Detection & Monitoring
Log Indicators:
- Unusual dumpsys activity from non-privileged users/apps in system logs
- Permission denial logs for dumpsys that should succeed
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
Search for dumpsys execution events from non-system users or unexpected processes