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CVE-2020-1040: Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability
Microsoft Hyper-V RemoteFX · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
7.32%EPSS exploit probability (30 days) 94.1th percentile
9 CRITICALCVSS 3.1
Unknownknown ransomware use
477days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD published | 2020-07-14 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-1040.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.