LOW
A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka "Device Guard Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers
Published Sep 13, 2018
3.3
LOWCVSS 3.0
EPSS 3.11%
Description
A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka "Device Guard Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Affected products
-
- Version 32-bit SystemsStatusaffectedConstraints-
- Version Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version version 1709 (Server Core Installation)StatusaffectedConstraints-
- Version version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version (Server Core installation)StatusaffectedConstraints-
- Version
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 |
| |||||||||||||||||||||||||||||||||
| Microsoft | Windows 10 Servers | n/a |
| |||||||||||||||||||||||||||||||||
| Microsoft | Windows Server 2016 | n/a |
|
OR
- n/a
- 1607
- 1703
- 1709
- 1803
- n/a
- 1709
- 1803
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
3.3 LOW NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact None
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:P/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.11% 0.03109
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03109
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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.11% (0.03109) | 87.33th | v5 (v2026.06.15) |
| Sep 22, 2026 | 3.11% (0.03109) | 87.20th | v5 (v2026.06.15) |
| Sep 21, 2026 | 4.23% (0.04234) | 90.60th | v5 (v2026.06.15) |
| Sep 6, 2026 | 3.11% (0.03109) | 86.92th | v5 (v2026.06.15) |
| Sep 5, 2026 | 4.23% (0.04234) | 90.40th | v5 (v2026.06.15) |
| Aug 30, 2026 | 3.11% (0.03109) | 86.85th | v5 (v2026.06.15) |
| Aug 28, 2026 | 4.23% (0.04234) | 90.34th | v5 (v2026.06.15) |
| Aug 24, 2026 | 3.11% (0.03109) | 86.77th | v5 (v2026.06.15) |
| Aug 23, 2026 | 4.23% (0.04234) | 90.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.11% (0.03109) | 86.04th | v5 (v2026.06.15) |
| Mar 17, 2026 | 1.32% (0.01316) | 79.66th | v4 (v2025.03.14) |
| Nov 21, 2025 | 3.02% (0.03022) | 86.14th | v4 (v2025.03.14) |
| Nov 18, 2025 | 0.93% (0.00933) | 74.17th | v4 (v2025.03.14) |
| Aug 5, 2025 | 2.43% (0.02425) | 84.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.13% (0.01133) | 76.87th | v4 (v2025.03.14) |
| Dec 17, 2024 | 46.38% (0.46375) | 97.51th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.08% (0.00079) | 35.91th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.06% (0.00061) | 26.17th | v3 (v2023.03.01) |
| Sep 6, 2023 | 0.06% (0.00061) | 24.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00054) | 19.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.19% (0.02185) | 80.92th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.19% (0.02185) | 79.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.19% (0.02185) | 57.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 35.03% (0.35026) | 97.90th | v1 |
| Sep 1, 2021 | 35.03% (0.35026) | 98.92th | v1 |
| Apr 14, 2021 | 35.03% (0.35026) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://www.securityfocus.com/bid/105272 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041642 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8449 x_refsource_CONFIRMPatchVendor Advisory
- https://www.exploit-db.com/exploits/45435/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105272 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041642 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8449 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.exploit-db.com/exploits/45435/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Sep 13, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8449
CISA Vulnrichment
Updated n/a