CVE-2023-21823
Published: February 14, 2023
Official Description
Microsoft Windows Graphic Component contains an unspecified vulnerability that allows for privilege escalation.
CISA KEV Advisory
Microsoft Windows Graphic Component Privilege Escalation Vulnerability
Microsoft Windows Graphic Component contains an unspecified vulnerability that allows for privilege escalation.
Apply updates per vendor instructions.
Risk Analysis
An unspecified vulnerability in the Microsoft Windows Graphic Component allows for privilege escalation. This high-severity flaw, with an EPSS score of 0.04170 and inclusion in CISA's KEV, indicates a significant and urgent risk of active exploitation.
This vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog. Exploitation typically requires local access to the system.
Users should apply the latest security updates for Microsoft Windows to patch this privilege escalation vulnerability in the graphic component. Regularly update all system components to mitigate known vulnerabilities.
Technical Analysis
CVE-2023-21823 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-2023-21823 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-2023-21823 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