Microsoft DirectX Graphics Kernel Privilege Escalation Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

HIGH

7.8 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

49.99 %

Predictive Probability

Percentile Rank

97.7 th

Documented as more likely to be exploited than 97.7% of known CVEs.

Detection Date

Mar 28, 2022

Remediation Due

Apr 18, 2022

CISA Catalog Active

Threat Analysis

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

Apply updates per vendor instructions.

Vendor Identity

Microsoft

Affected Product

DirectX Graphics Kernel (DXGKRNL)

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-404

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2018-8406