Windows Hyper-V
CVE-2021-1692 — Windows Hyper-V Denial of Service Vulnerability
Executive Summary
None
Overview
7.7
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Changed
Temporal Score: 6.7
EPSS Score
0.03931
probability of exploitation in the next 30 days
0.89021 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
17 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for x64-based Systems | 4598231 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4598243 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4601354 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4601345 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4601315 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 2004 for x64-based Systems | 4601319 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 20H2 for x64-based Systems | 4601319 (Security Update) |
Important | Denial of Service | Yes |
| Windows 8.1 for x64-based systems | 4598285 (Monthly Rollup) 4598275 (Security Only) |
Important | Denial of Service | Yes |
| Windows Server 2012 R2 | 4598285 (Monthly Rollup) 4598275 (Security Only) |
Important | Denial of Service | Yes |
| Windows Server 2012 R2 (Server Core installation) | 4598285 (Monthly Rollup) 4598275 (Security Only) |
Important | Denial of Service | Yes |
| Windows Server 2016 | 4598243 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2016 (Server Core installation) | 4598243 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2019 | 4601345 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2019 (Server Core installation) | 4601345 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server, version 1909 (Server Core installation) | 4601315 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server, version 2004 (Server Core installation) | 4601319 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server, version 20H2 (Server Core Installation) | 4601319 (Security Update) |
Important | Denial of Service | Yes |
Patches
7 patches
| Article | Type | Restart |
|---|---|---|
4598231 |
Security Update | Yes |
4598243 |
Security Update | Yes |
4601354 |
Security Update | Yes |
4601345 |
Security Update | Yes |
4601315 |
Security Update | Yes |
4601319 |
Security Update | Yes |
4598285 (Monthly Rollup) 4598275 |
Monthly Rollup | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Wei
References
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