CVE-2025-49736
📋 TL;DR
A spoofing vulnerability in Microsoft Edge for Android allows attackers to trick users into performing unintended actions via network-based deception. This affects all Android users running vulnerable versions of Microsoft Edge. The vulnerability enables UI manipulation that could lead to user confusion or unintended interactions.
💻 Affected Systems
- Microsoft Edge for Android
📦 What is this software?
Edge by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Attackers could trick users into revealing sensitive information, clicking malicious links, or performing unauthorized actions by spoofing legitimate UI elements.
Likely Case
Users might be tricked into clicking on spoofed UI elements that lead to phishing sites or unwanted downloads.
If Mitigated
With proper user awareness and network controls, impact is limited to minor user confusion or inconvenience.
🎯 Exploit Status
Exploitation requires network access and user interaction; no authentication bypass is involved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Latest Microsoft Edge for Android update
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49736
Restart Required: No
Instructions:
1. Open Google Play Store 2. Search for Microsoft Edge 3. Tap Update if available 4. Alternatively, enable auto-updates in Play Store settings
🔧 Temporary Workarounds
Disable JavaScript
androidPrevents dynamic UI manipulation that could enable spoofing attacks
edge://settings/content/javascript
Use alternative browser
androidTemporarily switch to a different browser until Edge is updated
🧯 If You Can't Patch
- Restrict network access to untrusted sources
- Implement user awareness training about phishing and spoofing risks
🔍 How to Verify
Check if Vulnerable:
Check Microsoft Edge version in app settings and compare with latest version in Play StoreCheck Version:
Open Edge → Settings → About Microsoft EdgeVerify Fix Applied:
Verify Microsoft Edge is updated to latest version in Play Store and no update is pending📡 Detection & Monitoring
Log Indicators:
- Unusual network requests from Edge browser
- Multiple failed authentication attempts following suspicious links
Network Indicators:
- Suspicious redirect patterns
- Unusual DNS queries from Edge browser
SIEM Query:
source="edge_android" AND (event_type="navigation" OR event_type="click") AND url CONTAINS suspicious_domain