CVE-2018-8406highunder attackransomwareCWE-404

CVE-2018-8406: high-severity vulnerability in Microsoft Windows Server 2016

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 7.8epss 3.4%
from disclosure to weapon
Published on NVDAug 15
CISA KEV+1321d
Action required by CISAfederal deadline: 2022-04-18

Apply updates per vendor instructions.

In short

A flaw in Windows' graphics driver (DirectX) allows an attacker with local access to gain higher system privileges, potentially taking full control of the computer.

Technical detail

The DirectX Graphics Kernel (DXGKRNL) driver fails to properly validate memory object handling, allowing a local attacker to trigger a privilege escalation. Exploitation requires local code execution capability and affects Windows 10 and Windows Server 2016, potentially leading to kernel-level access.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Microsoft · Windows 10Microsoft · Windows 10 ServersMicrosoft · Windows Server 2016
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