CVE-2021-40449HighMicrosoft 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-2021-40449 — Windows

Published
October 12, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-40449 →

📋 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-2021-40449. This page also shows what EchelonGraph holds for CVE-2021-40449, 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 products43

  • 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 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 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
  • +13 more not shown

✅ Updates Microsoft lists: 15 KB articles

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

KB articleUpdateFixed build
KB5006672Security Update10.0.17763.2237
KB5006667Security Update10.0.18363.1854
KB5006670Security Update10.0.19041.1288
KB5006699Security Update10.0.20348.288
KB5006670Security Update10.0.19042.1288
KB5006674Security Update10.0.22000.258
KB5006675Security Update10.0.10240.19086
KB5006669Security Update10.0.14393.4704
KB5006743Monthly Rollup6.1.7601.25740
KB5006728Security Only6.1.7601.25740
KB5006714Monthly Rollup6.3.9600.20144
KB5006729Security Only6.3.9600.20144
KB5006736Monthly Rollup6.0.6003.21251
KB5006715Security Only6.0.6003.21251
KB5006739Monthly Rollup6.2.9200.23490
KB5006732Security Only6.2.9200.23490

🧭 EchelonGraph on CVE-2021-40449

EchelonGraph score
9.0 CRITICAL
CISA KEV
Listed since November 17, 2021
Fix status
A fix is available — apply it.

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

Win32k Elevation of Privilege Vulnerability

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2021-40449, 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 (26)