CVE-2021-31956HighMicrosoft CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Microsoft security update for CVE-2021-31956 — Windows

Published
June 8, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-31956 →

📋 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-2021-31956. This page also shows what EchelonGraph holds for CVE-2021-31956, 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 products39

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1909 for 32-bit Systems
  • Windows 10 Version 1909 for ARM64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 Version 2004 for 32-bit Systems
  • Windows 10 Version 2004 for ARM64-based Systems
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 21H1 for 32-bit Systems
  • Windows 10 Version 21H1 for ARM64-based Systems
  • Windows 10 Version 21H1 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • +9 more not shown

✅ Updates Microsoft lists: 13 KB articles and 1 other update

16 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
KB5003667Monthly Rollup6.1.7601.25632
KB5003694Security Only6.1.7601.25632
KB5003671Monthly Rollup6.3.9600.20045
KB5003681Security Only6.3.9600.20044
—Monthly Rollup6.3.9600.20045
KB5003661Monthly Rollup6.0.6003.21137
KB5003695Security Only6.0.6003.21137
KB5003697Monthly Rollup6.2.9200.23372
KB5003696Security Only6.2.9200.23372

🧭 EchelonGraph on CVE-2021-31956

EchelonGraph score
9.0 CRITICAL
CISA KEV
Listed since November 3, 2021
Fix status
A fix is available — apply it.

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

Windows NTFS Elevation of Privilege Vulnerability

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2021-31956, 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 (25)