CVE-2025-36898
📋 TL;DR
CVE-2025-36898 is a local privilege escalation vulnerability in Android's Pixel devices that allows attackers to gain elevated privileges without user interaction. This logic error enables attackers to bypass security restrictions and execute code with higher permissions than intended. The vulnerability specifically affects Google Pixel devices running vulnerable Android versions.
💻 Affected Systems
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker with physical or remote access could gain root/system-level privileges, potentially compromising the entire device, accessing sensitive data, installing persistent malware, or bypassing security controls.
Likely Case
Malicious apps could exploit this to escape sandbox restrictions, access other apps' data, modify system settings, or install additional payloads without user knowledge.
If Mitigated
With proper security controls like verified boot, SELinux enforcement, and app sandboxing, the impact would be limited to specific contexts rather than full device compromise.
🎯 Exploit Status
The vulnerability requires initial access to the device but no additional execution privileges or user interaction, making exploitation straightforward once initial access is achieved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: September 2025 Android security patch
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2025-09-01
Restart Required: Yes
Instructions:
1. Navigate to Settings > System > System update on your Pixel device. 2. Check for and install the September 2025 security update. 3. Restart the device after installation completes.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from trusted sources like Google Play Store and disable installation from unknown sources
Settings > Security > Install unknown apps > Disable for all apps
Enable Google Play Protect
androidEnsure Google Play Protect is active to scan for potentially harmful apps
Settings > Security > Google Play Protect > Ensure scanning is enabled
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement strict application allowlisting and monitor for suspicious app behavior
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If patch level is earlier than September 2025, the device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify the security patch level shows 'September 5, 2025' or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts in system logs
- SELinux denials related to the vulnerable component
- Unexpected process creation with elevated privileges
Network Indicators:
- Unusual outbound connections from system processes
- Command and control traffic from privileged contexts
SIEM Query:
source="android_system_logs" AND (event_type="privilege_escalation" OR process_name="[vulnerable_component]")