CVE-2018-8611
Published: May 24, 2022
Official Description
A privilege escalation vulnerability exists when the Windows kernel fails to properly handle objects in memory.
CISA KEV Advisory
Microsoft Windows Kernel Privilege Escalation Vulnerability
A privilege escalation vulnerability exists when the Windows kernel fails to properly handle objects in memory.
Apply updates per vendor instructions.
Risk Analysis
A privilege escalation vulnerability exists in the Windows kernel due to improper handling of memory objects. This flaw allows an attacker to gain elevated privileges, posing a high risk given its confirmed exploitation and high EPSS score.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog, confirming its real-world impact.
Apply all available security updates for Windows to address this kernel privilege escalation vulnerability. Ensure systems are regularly patched and follow least privilege principles for user accounts.
Technical Analysis
CVE-2018-8611 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-2018-8611 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.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-8611 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