Coverage › CVE-2018-8639
CVE-2018-8639 Unmapped
Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
- Vendor / product
- Microsoft — Windows
- Description (CISA)
- 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.
- Added to KEV
- 2025-03-03
- Due date
- 2025-03-24
- 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.
- Known ransomware use
- Known
- CWE
- CWE-404
- CISA notes
- https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2018-8639
https://nvd.nist.gov/vuln/detail/CVE-2018-8639 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2018-8639. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-404) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.