CVE-2026-62717HighCVSS 7.8

Windows Message Queuing Elevation of Privilege Vulnerability

Published
August 14, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-62717 →

📋 Description

Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.

🎯 Affected products30

  • 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 x64-based Systems
  • 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
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • 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 26H1 for ARM64-based Systems
  • Windows 11 version 26H1 for x64-based Systems
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5120238 (Security Update) — fixed build 10.0.17763.9115 KB5120242 (Security Update) — fixed build 10.0.20348.5499 KB5120229 (Security Hotpatch Update) — fixed build 10.0.20348.5440 KB5120249 (Security Update) — fixed build 10.0.19044.7663 KB5120249 (Security Update) — fixed build 10.0.19045.7663 KB5120233 (Security Update) — fixed build 10.0.26100.33296 KB5120228 (Security Hotpatch Update) — fixed build 10.0.26100.33222 KB5121003 (Security Update) — fixed build 10.0.26200.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26200.9106 KB5120240 (Security Update) — fixed build 10.0.22631.7517 KB5121003 (Security Update) — fixed build 10.0.26100.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26100.9106 KB5121000 (Security Update) — fixed build 10.0.28000.2704 KB5120418 (Security Update) — fixed build 10.0.14393.9418 KB5120386 (Monthly Rollup) — fixed build 6.2.9200.26280 KB5120385 (Monthly Rollup) — fixed build 6.3.9600.23338

🔗 References (27)