What’s Vulnerable › Vulnerabilities

CVE-2018-8489

• Severity: high (CVSS 8.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-10-10 · 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 affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8490.

Affected products

• Microsoft Windows 10 Version 1607: 1607, 1703, 1709, 1803, 1809
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: all versions
• Microsoft Windows RT 8.1: all versions
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: 1709, 1803
• Microsoft Windows Server 2019: all versions
• Microsoft Windows 10 Version 1607: Version 1607 for x64-based Systems, Version 1703 for x64-based Systems, Version 1709 for x64-based Systems, Version 1803 for x64-based Systems, Version 1809 for 32-bit Systems, Version 1809 for x64-based Systems (+1)
• Microsoft Windows 10 Servers: version 1709 (Server Core Installation), version 1803 (Server Core Installation)
• Microsoft Windows 7: x64-based Systems Service Pack 1
• Microsoft Windows 8.1: x64-based systems
• Microsoft Windows RT 8.1: Windows RT 8.1
• Microsoft Windows Server 2008: x64-based Systems Service Pack 2, x64-based Systems Service Pack 2 (Server Core installation)
• Microsoft Windows Server 2008 R2: x64-based Systems Service Pack 1, x64-based Systems Service Pack 1 (Server Core installation)
• Microsoft Windows Server 2012: (Server Core installation)
• Microsoft Windows Server 2012 R2: (Server Core installation)
• Microsoft Windows Server 2016: (Server Core installation)
• Microsoft Windows Server 2019: (Server Core installation)

References

• http://www.securityfocus.com/bid/105479
• http://www.securitytracker.com/id/1041834
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8489
• http://www.securityfocus.com/bid/105479
• http://www.securitytracker.com/id/1041834
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8489

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