CVE-2018-8221 — MEDIUM (5.3)

Vulnerability Description

A security feature bypass vulnerability exists in Device Guard that could allow an attacker to inject malicious code into a Windows PowerShell session, aka "Device Guard Code Integrity Policy Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8201, CVE-2018-8211, CVE-2018-8212, CVE-2018-8215, CVE-2018-8216, CVE-2018-8217.

CVSS Score

5.3

MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10	-
Microsoft	Windows Server 2016	-

References

http://www.securityfocus.com/bid/104338Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041098Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8221MitigationPatchVendor Advisory
http://www.securityfocus.com/bid/104338Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041098Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8221MitigationPatchVendor Advisory

FAQ

What is CVE-2018-8221?

CVE-2018-8221 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A security feature bypass vulnerability exists in Device Guard that could allow an attacker to inject malicious code into a Windows PowerShell session, aka "Device Guard Code Integrity Policy Security...

How severe is CVE-2018-8221?

CVE-2018-8221 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-8221?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows Server 2016.