ZeusQA
Start free

Known exploited vulnerability

CVE-2018-8406

highCVSS 3.1 7.8In CISA KEVRansomwareEPSS 3.4%Published · Microsoft

The short answer

CVE-2018-8406 affects Microsoft Windows Server 2016 and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-28: attackers are using it, so patch it first. The vendor has linked a patch.

What it is

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.

Weakness: CWE-404.

Severity

7.8 high

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

Exploited (CISA KEV)

Yes, since Mar 28, 2022

Federal due date Apr 18, 2022

EPSS, next 30 days

3.4%

Higher than 89% of scored CVEs

How it can be exploited

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected products

Windows Server 2016, Windows 10, Windows 10 Servers. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2018-8406 being exploited?

Yes. CISA added CVE-2018-8406 to its Known Exploited Vulnerabilities catalog on 2022-03-28, with a federal remediation due date of 2022-04-18. CISA lists it as used in ransomware campaigns.

How do I fix CVE-2018-8406?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

Related

Know the day a CVE lands in your code

Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.

Start freeSee how a run works