A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability." This affects Windows 10, Windows 10 Servers
Published Sep 13, 2018
6.2
MEDIUMCVSS 3.0
EPSS 2.05%
Description
A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability." This affects Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8436, CVE-2018-8438.
Affected products
-
- Version Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version version 1803 (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 |
|
- 1803
- 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.
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:L/Au:S/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.05% (0.02052) | 80.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.05% (0.02052) | 78.68th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.30% (0.00303) | 51.38th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.13% (0.01131) | 84.44th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.06% (0.00061) | 26.27th | v3 (v2023.03.01) |
| Sep 6, 2023 | 0.06% (0.00062) | 24.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.32th | 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 | 10.69% (0.10686) | 87.85th | v1 |
| Jan 6, 2022 | 10.69% (0.10686) | 87.71th | v1 |
| Sep 1, 2021 | 10.69% (0.10686) | 95.19th | v1 |
| Apr 14, 2021 | 10.69% (0.10686) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/105237 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041624 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8437 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105237 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041624 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8437 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.