CVE-2021-40461

—1

CVSS 3.1

8.0 high

EPSS

1%p70

Published

Oct 13, 2021 (Oct 13, 2021)

Modified

Jun 17, 2026

Description

Windows Hyper-V Remote Code Execution Vulnerability

Vendors: microsoft
Products: windows 10, windows 11, windows server, windows server 2016, windows server 2019, windows server 2022
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.4%)

In the news5 stories

Patch Tuesday, October 2021 Edition

Krebs on SecurityOct 15, 00:00 UTC · Oct 15, 2021Vulnerability CVE-2021-30883 CVE-2021-38672 CVE-2021-40461+3 CVEs1

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Update Your Windows PCs Immediately to Patch New 0

The Hacker NewsOct 15, 00:00 UTC · Oct 15, 2021Vulnerability in the wildCVE-2021-40449 CVE-2021-41335 CVE-2021-40469+10 CVEs

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Threat Source newsletter (Oct. 14, 2021)

Cisco TalosOct 14, 18:00 UTC · Oct 14, 2021Ransomware in the wildCVE-2021-40461 CVE-2021-38672 CVE-2021-41733+1 CVEs

60

Microsoft Patch Tuesday for Oct. 2021 — Snort rules and prominent vulnerabilities

Cisco TalosOct 12, 17:33 UTC · Oct 12, 2021Vulnerability in the wildCVE-2021-40461 CVE-2021-38672 CVE-2021-40449+6 CVEs

60

Microsoft patches actively exploited Windows zero-day (CVE-2021-40449)

Help Net SecurityOct 12, 00:00 UTC · Oct 12, 2021Exploit / PoC in the wildCVE-2021-40449 CVE-2021-40486 CVE-2021-26427+5 CVEs

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