What’s Vulnerable › Vulnerabilities

CVE-2019-1230

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-10-10 · updated 2026-06-17
• Weakness: CWE-20

Description

An information disclosure vulnerability exists when the Windows Hyper-V Network Switch on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Information Disclosure Vulnerability'.

Affected products

• Microsoft Windows 10 Version 1607: 1703, 1709, 1803, 1809
• Microsoft Windows Server 2016: 1803
• Microsoft Windows Server 2019: all versions
• Microsoft Corporation Windows: 10 Version 1703 for x64-based Systems, 10 Version 1709 for x64-based Systems, 10 Version 1803 for x64-based Systems, 10 Version 1809 for x64-based Systems
• Microsoft Windows Server: version 1803 (Core Installation), 2019, 2019 (Core installation)

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1230
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1230

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