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
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
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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
NIST
CISA-ADP
Change History
12 change records found show changes
Modified Analysis by NIST 6/09/2025 4:58:58 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
*cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
*cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
*cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
Changed
Reference Type
CVE: http://www.securityfocus.com/bid/106093 Types: Third Party Advisory, VDB Entry
CVE: http://www.securityfocus.com/bid/106093 Types: Broken Link, Third Party Advisory, VDB Entry
Changed
Reference Type
Microsoft Corporation: http://www.securityfocus.com/bid/106093 Types: Third Party Advisory, VDB Entry
Microsoft Corporation: http://www.securityfocus.com/bid/106093 Types: Broken Link, Third Party Advisory, VDB Entry
CVE Modified by CISA-ADP 6/06/2025 2:15:33 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Removed
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Modified Analysis by NIST 3/05/2025 11:24:58 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Removed
CVSS V3
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Changed
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
*cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
*cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
*cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
CVE CISA KEV Update by Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government 3/03/2025 9:00:02 PM
Action
Type
Old Value
New Value
Added
Date Added
2025-03-03
Added
Due Date
2025-03-24
Added
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.
Added
Vulnerability Name
Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability
CVE Modified by CISA-ADP 3/03/2025 11:15:36 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-404
CVE Modified by CVE 11/20/2024 11:14:09 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/bid/106093
Added
Reference
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639
CVE Modified by Microsoft Corporation 5/14/2024 1:28:16 AM
Action
Type
Old Value
New Value
CWE Remap by NIST 10/02/2019 8:03:26 PM
Action
Type
Old Value
New Value
Changed
CWE
CWE-264
CWE-264
CWE-404
CPE Deprecation Remap by NIST 5/08/2019 6:11:29 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_8.1:-:-:-:*:-:-:*:*
OR
*cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:*
CPE Deprecation Remap by NIST 5/08/2019 6:03:15 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:-:-:*:*:*:*:*
OR
*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Initial Analysis by NIST 12/17/2018 9:16:46 AM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CVSS V2
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Added
CWE
CWE-264
Added
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_8.1:-:-:-:*:-:-:*:*
*cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:itanium:*
*cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2012:r2:-:-:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Changed
Reference Type
http://www.securityfocus.com/bid/106093 No Types Assigned
http://www.securityfocus.com/bid/106093 Third Party Advisory, VDB Entry
Changed
Reference Type
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 No Types Assigned
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 Patch, Vendor Advisory
CVE Modified by Microsoft Corporation 12/12/2018 8:29:09 AM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/bid/106093 [No Types Assigned]
Quick Info
CVE Dictionary Entry: CVE-2018-8639 NVD
Published Date: 12/11/2018 NVD
Last Modified: 06/09/2025
Source: Microsoft Corporation