CVE-2018-8639

Known Exploited

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 20.40% Top 5%
KEV Since 
Vendor Advisory microsoft.com
Affected: Microsoft Windows 7
Affected: Microsoft Windows Server 2012 R2
Affected: Microsoft Windows RT 8.1
Affected: Microsoft Windows Server 2008
Affected: Microsoft Windows Server 2019
Affected: Microsoft Windows Server 2012
Affected: Microsoft Windows 8.1
Affected: Microsoft Windows Server 2016
Affected: Microsoft Windows Server 2008 R2
Affected: Microsoft Windows 10
Affected: Microsoft Windows 10 Servers
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106093 third party advisory vdb entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8639 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-8639?
CVE-2018-8639 has been scored as a high severity vulnerability.
How to fix CVE-2018-8639?
To fix CVE-2018-8639, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-8639 being actively exploited in the wild?
It is confirmed that CVE-2018-8639 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-8639?
CVE-2018-8639 affects Microsoft Windows 7, Microsoft Windows Server 2012 R2, Microsoft Windows RT 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2019, Microsoft Windows Server 2012, Microsoft Windows 8.1, Microsoft Windows Server 2016, Microsoft Windows Server 2008 R2, Microsoft Windows 10, Microsoft Windows 10 Servers.
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