CVE-2025-36890
📋 TL;DR
CVE-2025-36890 is an elevation of privilege vulnerability in Android that allows attackers to gain higher system privileges than intended. This affects Google Pixel devices running vulnerable Android versions, potentially enabling unauthorized access to sensitive system functions.
💻 Affected Systems
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to execute arbitrary code with system privileges, access all user data, and persist malware.
Likely Case
Local attacker gains elevated privileges to access protected system resources or user data they shouldn't have access to.
If Mitigated
Limited impact with proper security controls, potentially only affecting isolated app sandboxes.
🎯 Exploit Status
Requires local access to the device. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: September 2025 Android security update
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2025-09-01
Restart Required: Yes
Instructions:
1. Go to Settings > System > System update. 2. Check for updates. 3. Download and install September 2025 security update. 4. Restart device when prompted.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from trusted sources like Google Play Store to reduce attack surface
Disable developer options
androidTurn off USB debugging and developer options when not needed
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict app whitelisting and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check Android version in Settings > About phone > Android version. If before September 2025 security patch, device is vulnerable.Check Version:
Settings > About phone > Android version and Android security patch levelVerify Fix Applied:
Verify Android security patch level shows 'September 5, 2025' or later in Settings > About phone > Android security patch level.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts in system logs
- Suspicious process creation with elevated privileges
Network Indicators:
- Unusual network connections from system processes
- Data exfiltration patterns
SIEM Query:
Process creation events where parent process has low privileges but child process has SYSTEM or ROOT privileges