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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2018-8639 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ADP:  CISA-ADP
Base Score:  8.4 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106093 Broken Link  Third Party Advisory  VDB Entry 
http://www.securityfocus.com/bid/106093 Broken Link  Third Party Advisory  VDB Entry 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 Patch  Vendor Advisory 
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 Patch  Vendor Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability 03/03/2025 03/24/2025 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 Enumeration

CWE-ID CWE Name Source
CWE-404 Improper Resource Shutdown or Release cwe source acceptance level NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-8639
NVD Published Date:
12/11/2018
NVD Last Modified:
06/09/2025
Source:
Microsoft Corporation