CVE-2025-32312
📋 TL;DR
This vulnerability allows local privilege escalation on Android devices by bypassing lazy bundle hardening through unsafe deserialization in PackageParser. Attackers can pass modified data between processes without user interaction. All Android devices running vulnerable versions are affected.
💻 Affected Systems
- Android OS
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise allowing attackers to execute arbitrary code with elevated privileges, potentially gaining persistent access and control over the device.
Likely Case
Local privilege escalation allowing malicious apps to gain higher permissions than intended, potentially accessing sensitive data or system functions.
If Mitigated
Limited impact if proper Android security updates are applied and device is not rooted or running untrusted apps.
🎯 Exploit Status
Exploitation requires local access and knowledge of Android internals, but no user interaction is needed once malicious code is present.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: June 2025 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-06-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System Update. 2. Install the June 2025 security patch or later. 3. Restart the device after installation.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from trusted sources like Google Play Store and disable unknown sources installation.
Settings > Security > Install unknown apps > Disable for all apps
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict app whitelisting policies and monitor for suspicious app behavior
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch level. If before June 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows 'June 5, 2025' or later date in Settings > About phone.📡 Detection & Monitoring
Log Indicators:
- Unusual PackageParser activity
- Suspicious intent parsing errors
- Unexpected process privilege changes
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable - primarily local device logs would need monitoring