Is CVE-2018-8641 being actively exploited?

CVE-2018-8641 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2018-8641?

CVE-2018-8641 has a CVSS 3.0 base score of 7.8 (HIGH).

CVE-2018-8641

HIGH · CVSS 7.8EPSS 1.1%EU EUVD

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.

Key facts

CVSS score: 7.8 (v3.0)
Severity: HIGH
CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-404
EPSS score: 1.1% (65th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2018-20252)
Published: December 12, 2018
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2018-20252 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows 10
microsoft / windows 10
microsoft / windows 10
microsoft / windows 10
microsoft / windows 10
microsoft / windows 10
microsoft / windows 8.1
microsoft / windows rt 8.1
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2012
microsoft / windows server 2012
microsoft / windows server 2016
microsoft / windows server 2016
microsoft / windows server 2016
microsoft / windows server 2019

Certified products that may be affected

10 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Microsoft Windows Server 2008 R2 Hyper-V Release 6.1.7600 - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0755-2012 - archived
Microsoft Windows 7, Microsoft Windows Server 2008 R2 - Microsoft Corporation - Common Criteria CCEVS-VR-10390-2010 - archived
Windows Server 2008 R2 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1339 - historical
Windows Server 2008 R2 Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1337 - historical
Microsoft Windows Server 2008 R2 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1335 - historical

See all 10 in the Security Certifications Explorer.

References

http://www.securityfocus.com/bid/106090(Third Party Advisory, VDB Entry)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8641(Patch, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain