CVE-2018-8639 — Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
2025-03-03 • CISA Known Exploited Vulnerability
[event] 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.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | Windows |
| CWE | CWE-404 |
| CVE ID | CVE-2018-8639 |
| Date Added | 2025-03-03 |
| Due Date | 2025-03-24 |
| Ransomware Campaign | Known — this vulnerability has been leveraged in ransomware campaigns |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2025-03-24