CVE-2025-20940
📋 TL;DR
This vulnerability in Samsung Device Health Manager Service allows local attackers to bypass permission checks and access provider components. It affects Samsung devices running versions prior to the April 2025 security update. Attackers need local access to the device to exploit this flaw.
💻 Affected Systems
- Samsung mobile devices
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Local attackers could access sensitive device health data, potentially leading to information disclosure about device status, performance metrics, or other protected health-related information.
Likely Case
Limited information disclosure of non-critical device health metrics or service data accessible through the SDMHS provider.
If Mitigated
With proper permission controls and updated software, the vulnerability is eliminated, preventing unauthorized access to the service provider.
🎯 Exploit Status
Exploitation requires local access to the device. No public exploit code has been identified at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SMR Apr-2025 Release 1
Vendor Advisory: https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04
Restart Required: Yes
Instructions:
1. Check for system updates in device settings. 2. Install the April 2025 security update. 3. Restart the device after installation completes.
🔧 Temporary Workarounds
Disable Device Health Manager Service
androidTemporarily disable the vulnerable service to prevent exploitation
adb shell pm disable-user --user 0 com.samsung.android.sm.devicehealth
🧯 If You Can't Patch
- Restrict physical access to devices
- Implement application whitelisting to prevent malicious apps from running
🔍 How to Verify
Check if Vulnerable:
Check device security patch level in Settings > About phone > Software information. If before April 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows 'April 1, 2025' or later in device settings.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Device Health Manager Service provider
- Permission denial logs for SDMHS components
Network Indicators:
- Local inter-process communication attempts to SDMHS
SIEM Query:
Process execution of apps attempting to access com.samsung.android.sm.devicehealth provider without proper permissions