CVE-2025-20924
📋 TL;DR
A physical access control vulnerability in Samsung Notes allows attackers with physical device access to bypass user profile isolation and access data from other user profiles on the same device. This affects Samsung device users with multiple profiles who haven't updated Samsung Notes to version 4.4.26.71 or later.
💻 Affected Systems
- Samsung Notes
📦 What is this software?
Notes by Samsung
⚠️ Risk & Real-World Impact
Worst Case
Physical attacker gains access to sensitive personal data, notes, and files from other user profiles on a shared device, potentially exposing confidential information.
Likely Case
Unauthorized access to notes and files from other user profiles when device is left unattended or shared among multiple users.
If Mitigated
Limited impact with proper physical security controls and updated software.
🎯 Exploit Status
Exploitation requires physical access to unlocked device or ability to unlock device.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.4.26.71
Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=03
Restart Required: No
Instructions:
1. Open Galaxy Store or Google Play Store on Samsung device. 2. Search for 'Samsung Notes'. 3. Update to version 4.4.26.71 or later. 4. Ensure automatic updates are enabled for future patches.
🔧 Temporary Workarounds
Disable Samsung Notes
androidTemporarily disable Samsung Notes app to prevent exploitation.
Settings > Apps > Samsung Notes > Disable
Use Single User Profile
androidRemove additional user profiles to eliminate attack surface.
Settings > Users and accounts > Users > Remove unwanted profiles
🧯 If You Can't Patch
- Implement strict physical security controls for devices
- Use device encryption and strong authentication methods
🔍 How to Verify
Check if Vulnerable:
Check Samsung Notes version in app settings or device app manager.Check Version:
Settings > Apps > Samsung Notes > App info > VersionVerify Fix Applied:
Confirm Samsung Notes version is 4.4.26.71 or higher.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns between user profiles
- Multiple failed authentication attempts
Network Indicators:
- Not applicable - local physical access vulnerability
SIEM Query:
Not applicable for this physical access vulnerability