CVE-2020-1040

Name: CVE-2020-1040
Creator: NVD / NIST
Published: 2020-07-14T23:15:11.683+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9/10Actively ExploitedEPSS 6.90%

Last modified Jun 17, 2026

CVE-2020-1040 is a critical-severity vulnerability rated 9/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 6.90% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9/10

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

EPSS Probability

6.90%

93.3th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Windows Server 2008	r2
Microsoft	Windows Server 2012	All versions
Microsoft	Windows Server 2012	r2
Microsoft	Windows Server 2016	All versions

References

https://nvidia.custhelp.com/app/answers/detail/a_id/5044Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040Patch, Vendor Advisory
https://nvidia.custhelp.com/app/answers/detail/a_id/5044Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1040US Government Resource

Timeline

Published: Jul 14, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-1040?

How severe is CVE-2020-1040?

CVE-2020-1040 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 6.90% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-1040?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1040?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST