Is CVE-2018-8406 in the CISA KEV catalog?

Yes. CVE-2018-8406 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-28, and has known ransomware campaign use.

What is the CVSS severity of CVE-2018-8406?

CVE-2018-8406 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-8406?

CVE-2018-8406 has an EPSS score of 3.44% (87th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2018-8406

HIGHCISA KEVEPSS 87th pctl

7.8

CVSS v3

NVD

Description

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8405.

CWE-404

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.44%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory.

Apply updates per vendor instructions.

Remediation due: 2022-04-18

Associated with ransomware campaigns

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-28.