CVE-2022-24453
📋 TL;DR
CVE-2022-24453 is a remote code execution vulnerability in Microsoft's HEVC Video Extensions that allows attackers to execute arbitrary code by tricking users into opening specially crafted video files. This affects Windows systems with the HEVC Video Extensions installed, potentially allowing attackers to gain control of affected systems.
💻 Affected Systems
- Microsoft HEVC Video Extensions
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining SYSTEM-level privileges, enabling data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Local user account compromise leading to data exfiltration, credential theft, and lateral movement within the network.
If Mitigated
Limited impact with proper application control policies and user education preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious video file. No public exploit code has been disclosed as of knowledge cutoff.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: HEVC Video Extensions version 1.0.50361.0 or later
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24453
Restart Required: No
Instructions:
1. Open Microsoft Store 2. Search for 'HEVC Video Extensions' 3. Click 'Get Updates' or install the latest version 4. Alternatively, apply Windows Update KB5010415 (February 2022 cumulative update)
🔧 Temporary Workarounds
Disable HEVC Video Extensions
windowsUninstall or disable the vulnerable HEVC Video Extensions component
Get-AppxPackage *HEVCVideoExtension* | Remove-AppxPackage
Application Control Policy
windowsImplement application control policies to block execution of HEVC Video Extensions
🧯 If You Can't Patch
- Implement strict user education about opening untrusted video files
- Deploy endpoint detection and response (EDR) solutions to detect malicious video file execution
🔍 How to Verify
Check if Vulnerable:
Check HEVC Video Extensions version in Microsoft Store or via PowerShell: Get-AppxPackage *HEVCVideoExtension* | Select VersionCheck Version:
Get-AppxPackage *HEVCVideoExtension* | Select Name, VersionVerify Fix Applied:
Verify HEVC Video Extensions version is 1.0.50361.0 or later📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs showing HEVC Video Extensions crashes
- Application errors related to hevcdecoderstore.dll
Network Indicators:
- Unusual outbound connections following video file execution
- Suspicious file downloads with video extensions
SIEM Query:
EventID=1000 AND Source='Application Error' AND (ProcessName LIKE '%HEVC%' OR FaultModuleName LIKE '%hevc%')