Findings

CVE-2020-1040

Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability

Published Jul 14, 2020 · updated Jun 16, 2026 · microsoft windows server 2008

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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 14, 2020 · Catalog

    Detected

    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.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

Apply updates per vendor instructions.

CISA due date May 3, 2022

Affected

  • cpe microsoft/windows server 2008r2
  • cpe microsoft/windows server 2012version unspecified
  • cpe microsoft/windows server 2012r2
  • cpe microsoft/windows server 2016version unspecified
  • vendor Microsoft Hyper-V RemoteFXversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2020-1040

    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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-1040

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-1040

    30-day exploitation probability 7.4%

    first.org
  • NIST NVDVulnerability recordCVE-2020-1040

    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-2020-1

    nvd.nist.gov

References