CVE-2025-60711
📋 TL;DR
A protection mechanism failure in Microsoft Edge (Chromium-based) allows unauthorized attackers to execute arbitrary code over a network connection. This affects all users running vulnerable versions of Microsoft Edge on any operating system where the browser is installed.
💻 Affected Systems
- Microsoft Edge (Chromium-based)
📦 What is this software?
Edge Chromium by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, data theft, and lateral movement within the network.
Likely Case
Limited code execution within browser sandbox leading to session hijacking, credential theft, or malware installation.
If Mitigated
Attack fails due to network segmentation, browser sandboxing, or other security controls limiting impact.
🎯 Exploit Status
Exploitation requires network access and bypassing browser security mechanisms.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Edge version in browser settings for latest security update
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-60711
Restart Required: No
Instructions:
1. Open Microsoft Edge. 2. Click Settings (three dots) → Help and feedback → About Microsoft Edge. 3. Browser will automatically check for and install updates. 4. Relaunch browser if prompted.
🔧 Temporary Workarounds
Disable network access to untrusted sources
allRestrict browser access to only trusted networks and websites
Enable Enhanced Security Mode
allUse Microsoft Edge's built-in Enhanced Security Mode for additional protection
🧯 If You Can't Patch
- Restrict Microsoft Edge usage to only essential trusted websites
- Implement network segmentation to isolate browser traffic from critical systems
🔍 How to Verify
Check if Vulnerable:
Check Microsoft Edge version in Settings → About Microsoft Edge and compare with latest security update version from Microsoft advisoryCheck Version:
edge://settings/help or check browser version in Settings → About Microsoft EdgeVerify Fix Applied:
Verify Microsoft Edge version is updated to latest security release and no longer matches vulnerable version range📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from Microsoft Edge
- Suspicious network connections originating from browser process
Network Indicators:
- Unexpected outbound connections from browser to unfamiliar IPs/domains
- Anomalous network traffic patterns from browser
SIEM Query:
Process Creation where ParentImage contains "msedge.exe" AND CommandLine contains unusual parameters OR Network Connection where ProcessName contains "msedge.exe" AND DestinationPort not in (80,443) AND DestinationIP not in (trusted_ips)