CVE-2025-48647
📋 TL;DR
This vulnerability allows local attackers to escalate privileges on affected Android devices without user interaction. It affects Google Pixel devices and potentially other Android implementations using the vulnerable component. The memory overwrite occurs in the cpm_fwtp_msg_handler function due to improper input validation.
💻 Affected Systems
- Google Pixel devices
- Android devices with vulnerable cpm_fwtp_ipc implementation
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to gain root/system privileges, access all user data, install persistent malware, and bypass all security controls.
Likely Case
Local privilege escalation allowing malware or malicious apps to gain elevated permissions, access sensitive data, and potentially persist across reboots.
If Mitigated
Limited impact if devices are fully patched, have strict app isolation, and minimal local attack surface.
🎯 Exploit Status
Requires local access but no user interaction; exploitation likely requires understanding of the memory corruption and privilege escalation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2026 Android Security Patch or later
Vendor Advisory: https://source.android.com/docs/security/bulletin/pixel/2026/2026-01-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install January 2026 security patch. 3. Reboot device. 4. Verify patch installation in Settings > About phone > Android version.
🔧 Temporary Workarounds
Disable unnecessary local services
androidReduce attack surface by disabling unused system components and services
Restrict app permissions
androidLimit app permissions to minimum required, especially for local device access
🧯 If You Can't Patch
- Isolate vulnerable devices from critical networks and sensitive data
- Implement strict application allowlisting and monitor for suspicious local activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If before January 2026, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows January 2026 or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts in system logs
- Suspicious cpm_fwtp_ipc process activity
- Memory corruption errors in kernel logs
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
source="android_system_logs" AND ("cpm_fwtp" OR "privilege escalation" OR "memory corruption")