CVE-2025-22427
📋 TL;DR
This vulnerability allows an attacker with physical access to an Android device to grant notification access above the lock screen through a logic error in the Settings app. This could lead to local privilege escalation without requiring additional execution privileges. The vulnerability affects Android devices running vulnerable versions of the Settings application.
💻 Affected Systems
- Android Settings application
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker with brief physical access could grant themselves notification access, potentially allowing them to read sensitive notifications (including authentication codes, messages, and app alerts) without unlocking the device, leading to further account compromise or data theft.
Likely Case
An attacker with temporary physical access (e.g., in a theft scenario) could exploit this to gain access to notifications containing sensitive information like 2FA codes or private messages, facilitating account takeover or privacy violations.
If Mitigated
With proper physical security controls (device encryption, strong lock screen, limited physical access), the impact is reduced as exploitation requires direct user interaction and physical access to the device.
🎯 Exploit Status
Exploitation requires physical access to the device and user interaction (tapping on the lock screen). No authentication bypass is involved, but the flaw allows escalation above lock screen restrictions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Included in Android Security Bulletin for April 2025 (2025-04-01)
Vendor Advisory: https://source.android.com/security/bulletin/2025-04-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Install the April 2025 security patch or later. 3. Restart the device after installation. 4. Verify the patch is applied by checking the security patch level in Settings > About phone.
🔧 Temporary Workarounds
Disable Notification Access for Untrusted Apps
androidReview and disable notification access for any suspicious or unnecessary applications to limit potential damage if exploited.
Settings > Apps & notifications > Special app access > Notification access
Use Strong Lock Screen Security
androidEnable strong authentication (PIN, password, or biometrics) and set a short screen timeout to reduce window for physical access exploitation.
Settings > Security > Screen lock
🧯 If You Can't Patch
- Implement strict physical security controls: keep devices in secure locations, use cable locks, and enforce clean desk policies.
- Educate users to never leave devices unattended in public areas and to immediately report any suspicious device interactions.
🔍 How to Verify
Check if Vulnerable:
Check if the device has the April 2025 Android security patch installed. If the security patch level is earlier than April 1, 2025, the device is likely vulnerable.Check Version:
Settings > About phone > Android version > Security patch levelVerify Fix Applied:
Verify the security patch level is April 1, 2025 or later in Settings > About phone > Android version > Security patch level.📡 Detection & Monitoring
Log Indicators:
- Unusual notification access grant events in system logs, particularly from lock screen interactions
- Multiple failed unlock attempts followed by notification access changes
Network Indicators:
- None - this is a local attack with no network component
SIEM Query:
Not applicable for typical SIEM monitoring as this is a local device-level vulnerability without network indicators.