CVE-2025-20782
📋 TL;DR
This CVE describes an out-of-bounds write vulnerability in a display component that could allow local privilege escalation. Attackers with initial System privilege access could exploit this to gain higher privileges without user interaction. The vulnerability affects MediaTek devices using the patched component.
💻 Affected Systems
- MediaTek devices with affected display components
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root/admin privileges, allowing installation of persistent malware, data theft, and disabling of security controls.
Likely Case
Local privilege escalation from System to higher privileged accounts, enabling lateral movement and persistence establishment.
If Mitigated
Limited impact if proper privilege separation and least privilege principles are enforced, though System access still provides significant capabilities.
🎯 Exploit Status
Requires System privilege as precondition, which reduces attack surface but makes exploitation more targeted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patch ID: ALPS10182882
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/January-2026
Restart Required: Yes
Instructions:
1. Check MediaTek security bulletin for affected device models
2. Contact device manufacturer for firmware updates
3. Apply the patch ALPS10182882
4. Reboot device after patch application
🔧 Temporary Workarounds
Restrict System Privilege Access
allLimit which users/processes can obtain System privilege to reduce attack surface
Implement SELinux/AppArmor Policies
linuxEnforce mandatory access controls to restrict display component interactions
🧯 If You Can't Patch
- Implement strict network segmentation to limit lateral movement
- Deploy endpoint detection and response (EDR) to monitor for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against MediaTek's affected versions list in their security bulletinCheck Version:
Check device firmware version in Settings > About Phone > Build NumberVerify Fix Applied:
Verify patch ALPS10182882 is applied by checking firmware version or patch status in device settings📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation events
- Abnormal display driver/system component behavior
- Processes gaining unexpected System privileges
Network Indicators:
- Unusual outbound connections following local privilege escalation
SIEM Query:
Process creation where parent process has System privilege AND child process gains higher privileges