CVE-2020-1040

At a glance

Severity: CRITICAL 9.0
Exploitation: Known exploited (CISA KEV) · added 2021-11-03
Exploited per ENISA since 2021-11-03
EPSS: EPSS 7.39 % · percentile 94 (2026-10-27)
State: PUBLISHED
Published: 2020-07-14
Updated: 2025-10-21
Assigner: microsoft
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	CRITICAL 9.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	CRITICAL 9.0	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.0	HIGH 7.7	AV:A/AC:L/Au:S/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-20

European references

ENISA EUVD · EUVD-2020-11934
GCVE · GCVE-0-2020-1040

CERT-FR advisories

CERTFR-2020-AVI-429 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*

Affected products

Product	Versions
Microsoft · Windows Server	affected 2016 ; affected 2016 (Core installation) ; affected 2008 R2 for x64-based Systems Service Pack 1 ; affected 2008 R2 for x64-based Systems Service Pack 1 (Core installation) ; affected 2012 ; affected 2012 (Core installation)

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
CISA Known Exploited Vulnerabilities	CC0 1.0
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD