CISA Known Exploited Vulnerability

CVE-2018-8639 Ransomware

Microsoft · Windows

Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability

Date added
BOD 22-01 due date
CWE CWE-404
Ransomware Known

CISA description

Microsoft Windows Win32k contains an improper resource shutdown or release vulnerability that allows for local, authenticated privilege escalation. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.