CVE-2025-48546
📋 TL;DR
This vulnerability allows malicious apps to launch background activities without proper permission checks, enabling local privilege escalation on Android devices. It affects Android systems where the flawed SafeActivityOptions.java logic is present. No user interaction is required for exploitation.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
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, access sensitive data, or install persistent malware.
Likely Case
Malicious apps gaining unauthorized access to protected activities, potentially stealing user data or performing unauthorized actions.
If Mitigated
Limited impact with proper app sandboxing and security updates applied.
🎯 Exploit Status
Requires a malicious app to be installed; exploitation leverages logic error in permission checking.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level 2025-09-01 or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-09-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Install the September 2025 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from trusted sources like Google Play Store and disable unknown sources.
Settings > Security > Install unknown apps > Disable for all apps
🧯 If You Can't Patch
- Monitor for suspicious app behavior using security tools
- Implement application allowlisting to restrict which apps can run
🔍 How to Verify
Check if Vulnerable:
Check Android Security Patch Level in Settings > About phone > Android versionCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Security Patch Level shows September 2025 or later date📡 Detection & Monitoring
Log Indicators:
- Unusual activity launches in system logs
- Permission denial errors for SafeActivityOptions
Network Indicators:
- None (local exploitation only)
SIEM Query:
Search for process launches with unexpected parent-child relationships or permission violations