CVEvulnerability

CVE-2020-1040

9.0 CRITICAL Known exploited Published 2020-07-14 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability — Microsoft Hyper-V RemoteFX

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.

Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-1040
Status
Analyzed
Published
2020-07-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.0 CRITICAL — CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.0 CRITICAL — CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.7 HIGH — AV:A/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-20

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.

Affected configurations

• microsoft windows server 2008 r2 • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References