CVE-2025-49755
📋 TL;DR
This CVE describes a UI spoofing vulnerability in Microsoft Edge for Android where an attacker can manipulate the browser interface to display misleading information. Attackers can trick users into believing they're interacting with legitimate content when they're actually viewing malicious content. Only Microsoft Edge for Android users are affected.
💻 Affected Systems
- Microsoft Edge for Android
📦 What is this software?
Edge by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Users could be tricked into entering sensitive information (credentials, financial data) into fake login forms or malicious websites that appear legitimate, leading to credential theft, financial fraud, or malware installation.
Likely Case
Phishing attacks where users are tricked into clicking malicious links or providing information to spoofed websites that appear to be legitimate services.
If Mitigated
Users who verify URLs carefully and use additional authentication methods (2FA) would be less likely to fall victim, though the spoofing could still create confusion.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious site) and network access; attacker needs to craft convincing spoofed content
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Edge for Android updates in Google Play Store
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49755
Restart Required: No
Instructions:
1. Open Google Play Store on Android device 2. Search for 'Microsoft Edge' 3. Tap 'Update' if available 4. Alternatively, enable auto-updates in Play Store settings
🔧 Temporary Workarounds
Use alternative browser
androidTemporarily switch to a different browser until Edge is updated
Enable enhanced security features
androidTurn on Microsoft Edge security features like Microsoft Defender SmartScreen
🧯 If You Can't Patch
- Educate users to always verify URLs in address bar before entering sensitive information
- Implement network filtering to block known malicious domains and phishing sites
🔍 How to Verify
Check if Vulnerable:
Check Microsoft Edge version in app settings and compare with patched version in Microsoft advisoryCheck Version:
Open Microsoft Edge → Settings → About Microsoft EdgeVerify Fix Applied:
Update Microsoft Edge via Play Store and confirm version matches or exceeds patched version📡 Detection & Monitoring
Log Indicators:
- Unusual browser activity patterns
- Multiple failed authentication attempts from same device
Network Indicators:
- Connections to known phishing domains
- Unusual redirect patterns in web traffic
SIEM Query:
source="edge_android" AND (event="phishing_attempt" OR url_contains="suspicious_domain")