CVE-2025-21077
📋 TL;DR
This vulnerability allows local attackers to launch arbitrary activities with Samsung Email privileges due to improper input validation. It affects Samsung Email versions prior to 6.2.06.0 on Samsung mobile devices. Attackers need local access to the device to exploit this vulnerability.
💻 Affected Systems
- Samsung Email
📦 What is this software?
Email by Samsung
⚠️ Risk & Real-World Impact
Worst Case
Local attacker gains unauthorized access to email data, sends emails from victim's account, or accesses other apps through Samsung Email's permissions.
Likely Case
Local attacker accesses sensitive email content or performs unauthorized email operations.
If Mitigated
Limited impact with proper app sandboxing and minimal permissions granted to Samsung Email.
🎯 Exploit Status
Requires local access to device and knowledge of exploitation techniques. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.2.06.0 and later
Vendor Advisory: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11
Restart Required: No
Instructions:
1. Open Google Play Store on Samsung device
2. Search for 'Samsung Email'
3. Update to version 6.2.06.0 or later
4. Alternatively, update through Samsung Galaxy Store if available
🔧 Temporary Workarounds
Disable Samsung Email
androidTemporarily disable the Samsung Email app to prevent exploitation
Settings > Apps > Samsung Email > Disable
Use alternative email client
androidSwitch to a different email application until patch is applied
🧯 If You Can't Patch
- Restrict physical access to devices
- Implement device management policies to control app installations
🔍 How to Verify
Check if Vulnerable:
Check Samsung Email version in device settings: Settings > Apps > Samsung Email > App infoCheck Version:
adb shell dumpsys package com.samsung.android.email.provider | grep versionNameVerify Fix Applied:
Verify Samsung Email version is 6.2.06.0 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual Samsung Email activity logs
- Unexpected intent launches from Samsung Email
Network Indicators:
- Unusual email sending patterns from Samsung Email
SIEM Query:
app:"Samsung Email" AND (event_type:"activity_launch" OR event_type:"intent_received")