TI-2020-01009 Aliases CVE-2020-1040 GHSA-98qh-xxww-5r96

Improper input validation in Microsoft Windows Server

CRITICAL 98Exploited in the wildCWE-20Published 2020-07-14 · Updated 2025-10-21

Key facts

Attack vector: Adjacent network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03

EPSS 0.07558 94th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Active
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Windows Server	2016; 2016 (Core installation); 2008 R2 for x64-based Systems Service Pack 1; 2008 R2 for x64-based Systems Service Pack 1 (Core installation); 2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation)	—	No fix listed	CNA

Windows Server VendorMicrosoft Affected 2016; 2016 (Core installation); 2008 R2 for x64-based Systems Service Pack 1; 2008 R2 for x64-based Systems Service Pack 1 (Core installation); 2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation) Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:microsoft:windows_server_2008:r2::::::x64:	r2	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_server_2012:-:::::::*	not specified by NVD	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*	r2	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_server_2016:-:::::::*	not specified by NVD	Vulnerable	Microsoft

cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:* Versions r2 Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2021-11-03 Added to CISA KEV
2026-10-02 Threatist record created from CVE-2020-1040
2026-10-03 Alias added: GHSA-98qh-xxww-5r96

References

Patch 1

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

Advisory 1

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

TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2020-01310 Improper input validation in Microsoft Windows Server KEVCVSS 3.1CRITICAL 10.0
TI-2019-00485 Use after free in Microsoft Windows KEVCVSS 3.1CRITICAL 9.8
TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
TI-2015-01465 HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1… KEVCVSS 3.1CRITICAL 9.8
TI-2008-04072 The Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and… KEVCVSS 3.1CRITICAL 9.8

See all 3551 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences