CVE-2022-23263
📋 TL;DR
This vulnerability in Microsoft Edge (Chromium-based) allows attackers to gain elevated privileges on affected systems. It affects users running vulnerable versions of Microsoft Edge on Windows systems. Successful exploitation could let attackers execute code with higher privileges than intended.
💻 Affected Systems
- Microsoft Edge (Chromium-based)
📦 What is this software?
Edge Chromium by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with administrative privileges, allowing installation of malware, data theft, and persistence mechanisms.
Likely Case
Local privilege escalation enabling attackers to bypass security controls, access restricted data, or install unwanted software.
If Mitigated
Limited impact with proper patch management and security controls in place, though risk remains until patching.
🎯 Exploit Status
Requires local access and user interaction; no public exploit code available as per Microsoft advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Microsoft Edge version 98.0.1108.43 or later
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-23263
Restart Required: Yes
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. Restart Edge when prompted.
🔧 Temporary Workarounds
Disable Microsoft Edge
windowsTemporarily disable Microsoft Edge browser usage until patching can be completed
Use alternative browser
allSwitch to a different web browser while awaiting patch deployment
🧯 If You Can't Patch
- Restrict local user privileges to limit potential impact of privilege escalation
- Implement application whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Microsoft Edge version: Open Edge → Settings → Help and feedback → About Microsoft Edge. If version is below 98.0.1108.43, system is vulnerable.Check Version:
msedge --version (from command line)Verify Fix Applied:
Verify Microsoft Edge version is 98.0.1108.43 or higher using same method as checking vulnerability.📡 Detection & Monitoring
Log Indicators:
- Unusual Edge process behavior
- Privilege escalation attempts in Windows Event Logs
- Unexpected Edge updates or modifications
Network Indicators:
- None specific to this vulnerability as it's local privilege escalation
SIEM Query:
EventID=4688 AND ProcessName="msedge.exe" AND NewProcessName contains elevated privilege indicators