VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published EPSS 1.1% probability of exploitation in 30 days
Microsoft

CVE-2018-8641: An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handl…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from .

How likely is exploitation in the next 30 days?
1.1%

EPSS score, percentile 66 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
Not scored

The CVE record carries no CVSS score.

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • 32-bit Systems Service Pack 1
  • x64-based Systems Service Pack 1
  • (Server Core installation)
  • Windows RT 8.1
  • 32-bit Systems Service Pack 2
  • 32-bit Systems Service Pack 2 (Server Core installation)

and 25 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver 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-2018-8639.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (11 products)
Microsoft Windows 7
StatusVersions
Affected32-bit Systems Service Pack 1
Affectedx64-based Systems Service Pack 1
Microsoft Windows Server 2012 R2
StatusVersions
Affected(Server Core installation)
Microsoft Windows RT 8.1
StatusVersions
AffectedWindows RT 8.1
Microsoft Windows Server 2008
StatusVersions
Affected32-bit Systems Service Pack 2
Affected32-bit Systems Service Pack 2 (Server Core installation)
AffectedItanium-Based Systems Service Pack 2
Affectedx64-based Systems Service Pack 2
Affectedx64-based Systems Service Pack 2 (Server Core installation)
Microsoft Windows Server 2019
StatusVersions
Affected(Server Core installation)
Microsoft Windows Server 2012
StatusVersions
Affected(Server Core installation)
Microsoft Windows 8.1
StatusVersions
Affected32-bit systems
Affectedx64-based systems
Microsoft Windows Server 2016
StatusVersions
Affected(Server Core installation)
Microsoft Windows Server 2008 R2
StatusVersions
AffectedItanium-Based Systems Service Pack 1
Affectedx64-based Systems Service Pack 1
Affectedx64-based Systems Service Pack 1 (Server Core installation)
Microsoft Windows 10
StatusVersions
Affected32-bit Systems
AffectedVersion 1607 for 32-bit Systems
AffectedVersion 1607 for x64-based Systems
AffectedVersion 1703 for 32-bit Systems
AffectedVersion 1703 for x64-based Systems
AffectedVersion 1709 for 32-bit Systems
AffectedVersion 1709 for ARM64-based Systems
AffectedVersion 1709 for x64-based Systems
AffectedVersion 1803 for 32-bit Systems
AffectedVersion 1803 for ARM64-based Systems
AffectedVersion 1803 for x64-based Systems
AffectedVersion 1809 for 32-bit Systems

And 3 more version entries in the CVE record.

Microsoft Windows 10 Servers
StatusVersions
Affectedversion 1709 (Server Core Installation)
Affectedversion 1803 (Server Core Installation)

Source: CVE List, as of . About the data.

Timeline

DateEvent
CVE record published
CVE record last updated

References

2

Known exploited Microsoft vulnerabilities

  • CVE-2026-96951: Microsoft Windows Command Injection Vulnerability (added )
  • CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability (added )
  • CVE-2026-81963: Microsoft Windows Link Following Vulnerability (added )
  • CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability (added )
  • CVE-2019-1068: Microsoft SQL Server Remote Code Execution Vulnerability (added )