Cybersecurity Alerts

Actively Exploited Vulnerabilities

← Back to Cybersecurity Alerts

CVE-2018-8639

Microsoft | WindowsAdded 2025-03-03Remediation Deadline 2025-03-24Active Ransomware Campaign

Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability

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.

Weakness Classification

CWE-404

References