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Microsoft Security Response CenterCVE-2026-105552

Windows Kernel Information Disclosure Vulnerability

HighVendor CVSS 5.5 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC
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Summary

An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory.

To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.

The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.

Products covered

  • Windows 10 Version 1809 for 32-bit Systems

  • Windows 10 Version 1809 for x64-based Systems

  • Windows Server 2019

  • Windows Server 2019 (Server Core installation)

  • Windows 10 Version 21H2 for 32-bit Systems

  • Windows 10 Version 21H2 for ARM64-based Systems

  • Windows 10 Version 21H2 for x64-based Systems

  • Windows 10 Version 22H2 for 32-bit Systems

Show 16 more products

  • Windows 10 Version 22H2 for ARM64-based Systems

  • Windows 10 Version 22H2 for x64-based Systems

  • Windows Server 2022

  • Windows Server 2022 (Server Core installation)

  • Windows 11 Version 23H2 for ARM64-based Systems

  • Windows 11 Version 23H2 for x64-based Systems

  • Windows 11 Version 24H2 for ARM64-based Systems

  • Windows 11 Version 24H2 for x64-based Systems

  • Windows 11 Version 25H2 for ARM64-based Systems

  • Windows 11 Version 25H2 for x64-based Systems

  • Windows 11 Version 26H2 for ARM64-based Systems

  • Windows 11 Version 26H2 for x64-based Systems

  • Windows Server 2025

  • Windows Server 2025 (Server Core installation)

  • Windows 11 Version 26H1 for ARM64-based Systems

  • Windows 11 version 26H1 for x64-based Systems

Remediation

Install KB5131085. Install KB5131096. Install KB5131090. Install KB5131087. Install KB5132061. Install KB5132043. Install KB5131080. Install KB5131077. Install KB5132059.

Vendor-listed fixes

  • 10.0.17763.9487

  • 10.0.19044.7846

  • 10.0.19045.7846

  • 10.0.20348.5870

  • 10.0.22631.7711

  • 10.0.26100.9974

  • 10.0.26100.9911

  • 10.0.26200.9974

Show 6 more fixes

  • 10.0.26200.9911

  • 10.0.26300.9974

  • 10.0.26300.9911

  • 10.0.26100.33822

  • 10.0.26100.33730

  • 10.0.28000.3501

CVEs in this advisory 1

CVE-2026-105552

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

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