CVE-2024-38193
Published: August 13, 2024
Official Description
Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
CISA KEV Advisory
Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability
Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
Microsoft Windows Ancillary Function Driver for WinSock contains an unspecified vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges. The high EPSS score of 0.74832 indicates a significant likelihood of exploitation, and its presence in CISA's KEV confirms active exploitation, making this an urgent concern for Windows systems.
This vulnerability is actively being exploited in the wild, as confirmed by its inclusion in CISA's KEV.
Apply the latest security updates from Microsoft to patch the Ancillary Function Driver for WinSock vulnerability and prevent privilege escalation.
Technical Analysis
CVE-2024-38193 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-2024-38193 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-2024-38193 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