CVE-2018-8639
Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-03-03. Federal due date: 2025-03-24.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1507 | All versions |
| Microsoft | Windows 10 1607 | All versions |
| Microsoft | Windows 10 1703 | All versions |
| Microsoft | Windows 10 1709 | All versions |
| Microsoft | Windows 10 1803 | All versions |
| Microsoft | Windows 10 1809 | All versions |
| Microsoft | Windows 7 | All versions |
| Microsoft | Windows 8.1 | All versions |
| Microsoft | Windows Rt 8.1 | All versions |
| Microsoft | Windows Server 2008 | All versions Version r2 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://www.securityfocus.com/bid/106093
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639
- http://www.securityfocus.com/bid/106093
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8639