CVE-2025-20972
📋 TL;DR
This vulnerability in Samsung Flow allows local attackers to modify the application's configuration through improper intent verification in broadcast receivers. It affects Samsung Flow users on Android devices with versions prior to 4.9.17.6. Attackers must have local access to the device to exploit this flaw.
💻 Affected Systems
- Samsung Flow
📦 What is this software?
Flow by Samsung
⚠️ Risk & Real-World Impact
Worst Case
An attacker could modify Samsung Flow configuration to intercept sensitive data, manipulate synchronization settings, or potentially gain unauthorized access to connected services.
Likely Case
Local attackers could alter Samsung Flow settings to disrupt functionality, change notification preferences, or modify connection parameters between devices.
If Mitigated
With proper access controls and updated software, the risk is limited to authorized users making legitimate configuration changes.
🎯 Exploit Status
Exploitation requires local access to the device. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.9.17.6 and later
Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=05
Restart Required: No
Instructions:
1. Open Google Play Store on your Android device. 2. Search for 'Samsung Flow'. 3. If an update is available, tap 'Update'. 4. Alternatively, update through Samsung Galaxy Store if installed.
🔧 Temporary Workarounds
Disable Samsung Flow
androidTemporarily disable Samsung Flow until the update can be applied
Settings > Apps > Samsung Flow > Disable
Restrict app permissions
androidReview and restrict Samsung Flow permissions to minimum required
Settings > Apps > Samsung Flow > Permissions
🧯 If You Can't Patch
- Implement strict physical access controls to prevent unauthorized local access to devices
- Monitor for unusual configuration changes in Samsung Flow settings
🔍 How to Verify
Check if Vulnerable:
Check Samsung Flow version in app settings or Google Play StoreCheck Version:
Open Samsung Flow > Settings > About Samsung FlowVerify Fix Applied:
Confirm Samsung Flow version is 4.9.17.6 or higher📡 Detection & Monitoring
Log Indicators:
- Unexpected configuration changes in Samsung Flow logs
- Unauthorized broadcast intents targeting Samsung Flow
Network Indicators:
- Unusual synchronization patterns between devices
SIEM Query:
app:"Samsung Flow" AND event_type:"configuration_change" AND user:"unexpected_user"