CVE-2021-40454HighCVSS 5.5

Rich Text Edit Control Information Disclosure Vulnerability

Published
October 12, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-40454 →

📋 Description

What type of information could be disclosed by this vulnerability? An attacker that successfully exploited this vulnerability could recover cleartext passwords from memory.

🎯 Affected products48

  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Office 2013 RT Service Pack 1
  • Microsoft Office 2013 Service Pack 1 (32-bit editions)
  • Microsoft Office 2013 Service Pack 1 (64-bit editions)
  • Microsoft Office 2016 (32-bit edition)
  • Microsoft Office 2016 (64-bit edition)
  • Microsoft Office 2019 for 32-bit editions
  • Microsoft Office 2019 for 64-bit editions
  • Microsoft Office 2019 for Mac
  • Microsoft Office LTSC 2021 for 32-bit editions
  • Microsoft Office LTSC 2021 for 64-bit editions
  • Microsoft Office LTSC for Mac 2021
  • 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
  • +18 more not shown

✅ Remediation

KB5006672 (Security Update) — fixed build 10.0.17763.2237 KB5006667 (Security Update) — fixed build 10.0.18363.1854 KB5006670 (Security Update) — fixed build 10.0.19043.1288 KB5006699 (Security Update) — fixed build 10.0.20348.288 KB5006670 (Security Update) — fixed build 10.0.19041.1288 KB5006670 (Security Update) — fixed build 10.0.19042.1288 KB5006674 (Security Update) — fixed build 10.0.22000.258 KB5006675 (Security Update) — fixed build 10.0.10240.19086 KB5006669 (Security Update) — fixed build 10.0.14393.4704 KB5006714 (Monthly Rollup) — fixed build 6.3.9600.20144 KB5006729 (Security Only) — fixed build 6.3.9600.20144 KB5006739 (Monthly Rollup) — fixed build 6.2.9200.23490 KB5006732 (Security Only) — fixed build 6.2.9200.23490 KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases KBRelease Notes (Security Update) — fixed build 16.54.21101001 KB4461476 (Security Update) — fixed build 16.0.5227.1000 KB4018332 (Security Update) — fixed build 15.0.5389.1000

🔗 References (23)