What’s Vulnerable › Vulnerabilities

CVE-2019-1398

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-12 · updated 2026-06-17
• Weakness: CWE-20

Description

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Windows Hyper-V Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1389, CVE-2019-1397.

Affected products

• Microsoft Windows 10 Version 1607: 1709, 1803, 1809, 1903
• Microsoft Windows Server 2016: 1803, 1903
• Microsoft Windows Server 2019: all versions
• Microsoft Corporation Windows: 10 Version 1709 for x64-based Systems, 10 Version 1803 for x64-based Systems, 10 Version 1809 for x64-based Systems
• Microsoft Windows 10 Version 1903 for x64-based Systems: all versions
• Microsoft Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation)
• Microsoft Windows Server, version 1903 (Server Core installation): all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1398
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1398

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