CVE-2021-26869HighCVSS 5.5

Windows ActiveX Installer Service Information Disclosure Vulnerability

Published
March 9, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-26869 →

📋 Description

What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is unauthorized file system access - reading from the file system.

🎯 Affected products36

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1803 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 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 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • +6 more not shown

✅ Remediation

KB5000809 (Security Update) — fixed build 10.0.17134.2087 KB5000822 (Security Update) — fixed build 10.0.17763.1817 KB5000808 (Security Update) — fixed build 10.0.18363.1440 KB5000802 (Security Update) — fixed build 10.0.19043.867 KB5000807 (Security Update) — fixed build 10.0.10240.18874 KB5000803 (Security Update) — fixed build 10.0.14393.4283 KB5000841 (Monthly Rollup) — fixed build 6.1.7601.24566 KB5000851 (Security Only) KB5000848 (Monthly Rollup) — fixed build 6.3.9600.19968 KB5000853 (Security Only) KB5000847 (Monthly Rollup) — fixed build 6.2.9200.23298 KB5000840 (Security Only)

🔗 References (25)