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.
CVE-2018-8222
MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence
Score 5.3 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 5.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 78.1%
- KEV
- Not listed
Published
July 11, 2018
Last Modified
November 21, 2024
References (6)
- secure@microsofthttp://www.securityfocus.com/bid/104635
- secure@microsofthttp://www.securitytracker.com/id/1041265
- secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8222
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104635
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1041265
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8222
Frequently asked(5)
What is CVE-2018-8222?
CVE-2018-8222 is a medium vulnerability published on July 11, 2018. 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.
When was CVE-2018-8222 disclosed?
CVE-2018-8222 was first published in the National Vulnerability Database on July 11, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-8222 actively exploited?
CVE-2018-8222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-8222?
CVE-2018-8222 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2018-8222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-8222, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2018-8222
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