CRITICAL🚩 CISA KEV⚡ EXPLOIT✓ PATCH🇵🇱 Wersja polska

CVE-2020-1040

CVSS 9.0v3.1pub. 2020-07-14upd. 2025-10-29

A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.

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CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Microsoft Windows Server 2008
OS
Microsoft
r2
Microsoft Windows Server 2012
OS
Microsoft
r2
Microsoft Windows Server 2016
OS
Microsoft
all versions

CISA KEV — detailsi

Vendori: Microsoft ↗
Producti: Hyper-V RemoteFX
Added to KEVi: November 3, 2021
Remediation deadline (US Federal)i: May 3, 2022(overdue)

🔧Advisory Microsoft↗🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply updates per vendor instructions.

CISA descriptioni

Microsoft Hyper-V RemoteFX vGPU contains an improper input validation vulnerability due to the host server failing to properly validate input from an authenticated user on a guest operating system. Successful exploitation allows for remote code execution on the host operating system.

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