CVE-2021-31977HighMicrosoft CVSS 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C

Microsoft security update for CVE-2021-31977 — Windows

Published
June 8, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-31977 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31977. This page also shows what EchelonGraph holds for CVE-2021-31977, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products12

  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 21H1 for x64-based Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 2004 (Server Core installation)
  • Windows Server, version 20H2 (Server Core Installation)

✅ Updates Microsoft lists: 5 KB articles

7 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
KB5003646Security Update10.0.17763.1999
KB5003635Security Update10.0.18363.1621
KB5003637Security Update10.0.19043.1052
KB5003637Security Update10.0.19041.1052
KB5003637Security Update10.0.19042.1052
KB5003687Security Update10.0.10240.18967
KB5003638Security Update10.0.14393.4467

🧭 EchelonGraph on CVE-2021-31977

EchelonGraph score
8.6 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Windows Hyper-V Denial of Service Vulnerability

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2021-31977, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (9)