CVE-2019-0721
9.1
CRITICAL · CVSS 3.1 · EPSS 12.1% (pctl 96)
Patch early
EPSS 12.1% — above the 10% action threshold.
Description
A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0719.
Scoring
| CVSS | 9.1 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 12.12% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-11-12 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| microsoft | windows 10 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
References
→ the Explorer · watch your stack · NVD