CVE-2018-8639: Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
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.
Description
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.
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: Windows 10Microsoft: Windows 10 ServersMicrosoft: Windows 7Microsoft: Windows 8.1Microsoft: Windows RT 8.1Microsoft: Windows Server 2008Microsoft: Windows Server 2008 R2Microsoft: Windows Server 2012Microsoft: Windows Server 2012 R2Microsoft: Windows Server 2016Microsoft: Windows Server 2019
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 (opens in new tab)
- www.securityfocus.com/bid/106093 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)