CVE-2020-1040

CRITICAL KEV

Windows Server 2008, 2012, 2016 - Authenticated Remote Code Execution via Hyper-V RemoteFX vGPU Input Validation

Title source: llm

Exploitation Summary

CVE-2020-1040 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 3, 2021.

Description

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.

References (3)

Core 3

Core References

Patch, Vendor Advisory x_refsource_misc

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040

Third Party Advisory x_refsource_confirm

https://nvidia.custhelp.com/app/answers/detail/a_id/5044

US Government Resource

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1040

Scores

CVSS v3 9.0

EPSS 0.0018

EPSS Percentile 39.4%

Attack Vector ADJACENT_NETWORK

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

CISA SSVC

Vulnrichment

Exploitation active

Automatable no

Technical Impact total

Details

CISA KEV 2021-11-03

VulnCheck KEV 2020-10-20

InTheWild.io 2021-07-23

ENISA EUVD EUVD-2020-11934

CWE

CWE-20

Status published

Products (4)

microsoft/windows_server_2008 r2

microsoft/windows_server_2012

microsoft/windows_server_2012 r2

microsoft/windows_server_2016

Published Jul 14, 2020

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026