CVE-2018-8201 — 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

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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 Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers

Published Jun 14, 2018

4.5

MEDIUM

CVSS 3.0

EPSS 1.94%

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-2018-8211, CVE-2018-8212, CVE-2018-8215, CVE-2018-8216, CVE-2018-8217, CVE-2018-8221.

Affected products

Vendor Microsoft Product Windows 10 Default
n/a
- Version
  32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1607 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1607 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1703 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1703 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1709 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1709 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1803 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Version 1803 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  x64-based Systems
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Windows 10 Servers Default
n/a
- Version
  version 1709 (Server Core Installation)
  Status
  affected
  Constraints
  -
- Version
  version 1803 (Server Core Installation)
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Windows Server 2016 Default
n/a
- Version
  (Server Core installation)
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Microsoft

Windows 10

n/a

Version	Status	Constraints
32-bit Systems	affected	-
Version 1607 for 32-bit Systems	affected	-
Version 1607 for x64-based Systems	affected	-
Version 1703 for 32-bit Systems	affected	-
Version 1703 for x64-based Systems	affected	-
Version 1709 for 32-bit Systems	affected	-
Version 1709 for x64-based Systems	affected	-
Version 1803 for 32-bit Systems	affected	-
Version 1803 for x64-based Systems	affected	-
x64-based Systems	affected	-

Microsoft

Windows 10 Servers

n/a

Version	Status	Constraints
version 1709 (Server Core Installation)	affected	-
version 1803 (Server Core Installation)	affected	-

Microsoft

Windows Server 2016

n/a

Version	Status	Constraints
(Server Core installation)	affected	-

Remediation

No remediation recorded yet.

Metrics

1.94% 0.01941

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01941

Score over time

2021–2026

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (19 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.94% (0.01941)	79.40th	v5 (v2026.06.15)
Jun 15, 2026	1.79% (0.01794)	75.49th	v5 (v2026.06.15)
Mar 17, 2025	0.32% (0.00317)	52.57th	v4 (v2025.03.14)
Dec 17, 2024	1.73% (0.01734)	87.56th	v3 (v2023.03.01)
Dec 12, 2024	0.05% (0.00054)	23.67th	v3 (v2023.03.01)
Jun 12, 2024	0.05% (0.00054)	21.56th	v3 (v2023.03.01)
Jun 5, 2024	0.05% (0.00054)	19.56th	v3 (v2023.03.01)
May 3, 2024	0.06% (0.00055)	21.80th	v3 (v2023.03.01)
Jul 8, 2023	0.05% (0.00054)	19.69th	v3 (v2023.03.01)
Jun 8, 2023	0.08% (0.00077)	31.50th	v3 (v2023.03.01)
May 8, 2023	0.07% (0.00067)	27.55th	v3 (v2023.03.01)
Mar 7, 2023	0.05% (0.00047)	14.49th	v3 (v2023.03.01)
Mar 6, 2023	1.42% (0.01418)	73.14th	v2 (v2022.01.01)
Apr 1, 2022	1.42% (0.01418)	71.15th	v2 (v2022.01.01)
Feb 4, 2022	1.42% (0.01418)	50.43th	v2 (v2022.01.01)
Feb 3, 2022	8.76% (0.08756)	86.41th	v1
Jan 6, 2022	8.76% (0.08756)	86.25th	v1
Sep 1, 2021	8.76% (0.08756)	93.70th	v1
Apr 14, 2021	8.76% (0.08756)	0.00th	v1

Weaknesses (0)

No CWE recorded.

References (3)

http://www.securityfocus.com/bid/104331
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041098
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8201
x_refsource_CONFIRMMitigationPatchVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/104331		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041098		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8201		x_refsource_CONFIRMMitigationPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Jun 14, 2018

Updated Aug 5, 2024

Reserved Mar 14, 2018

Link CVE-2018-8201

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-8201

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-8201