CVE-2025-20650
📋 TL;DR
This CVE describes an out-of-bounds write vulnerability in MediaTek's da component that could allow local privilege escalation. Attackers with physical access can exploit this without additional privileges, though user interaction is required. The vulnerability affects MediaTek devices using the vulnerable da component.
💻 Affected Systems
- MediaTek devices with vulnerable da component
📦 What is this software?
Android by Google
Android by Google
Android by Google
Openwrt by Openwrt
Openwrt by Openwrt
Rdk B by Rdkcentral
Rdk B by Rdkcentral
Yocto by Linuxfoundation
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with root/system privileges, allowing persistent backdoor installation, data theft, and full control over the device.
Likely Case
Local privilege escalation from a standard user to root/system level, enabling installation of malware, data access, and persistence mechanisms.
If Mitigated
Limited impact due to physical access requirements and user interaction needed; proper access controls and patching prevent exploitation.
🎯 Exploit Status
Exploitation requires physical access and user interaction. No public exploit code mentioned in CVE details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch ID: ALPS09291294
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/March-2025
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates. 2. Apply MediaTek patch ALPS09291294. 3. Reboot device after patch installation. 4. Verify patch installation through system logs or version checks.
🔧 Temporary Workarounds
Restrict physical access
allImplement physical security controls to prevent unauthorized device access
Disable unnecessary da services
linuxIf possible, disable or restrict the vulnerable da service
systemctl stop [da_service_name]
systemctl disable [da_service_name]
🧯 If You Can't Patch
- Implement strict physical security controls and device access policies
- Monitor for suspicious privilege escalation attempts and system modifications
🔍 How to Verify
Check if Vulnerable:
Check system logs for da service version or consult device manufacturer for vulnerability statusCheck Version:
Check with device manufacturer for specific version verification commandsVerify Fix Applied:
Verify patch ALPS09291294 is applied through system update logs or manufacturer verification tools📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation events
- da service crashes or abnormal behavior
- Unauthorized system modifications
Network Indicators:
- Not applicable - local exploitation only
SIEM Query:
source="system_logs" AND (event="privilege_escalation" OR process="da")