CVE-2022-21971
Published: August 18, 2022
Official Description
Microsoft Windows Runtime contains an unspecified vulnerability that allows for remote code execution.
CISA KEV Advisory
Microsoft Windows Runtime Remote Code Execution Vulnerability
Microsoft Windows Runtime contains an unspecified vulnerability that allows for remote code execution.
Apply updates per vendor instructions.
Risk Analysis
Microsoft Windows Runtime contains an unspecified vulnerability that allows for remote code execution. The very high EPSS score of 0.87061 indicates a strong likelihood of exploitation, and its inclusion in CISA's KEV confirms active exploitation, making this a critical vulnerability for Windows systems.
This vulnerability is actively being exploited in the wild. The remote code execution capability implies it is remotely exploitable.
Organizations should apply all available security updates for Microsoft Windows. Ensure systems are regularly patched and monitored for suspicious activity.
Technical Analysis
CVE-2022-21971 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-21971 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-21971 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1