CVE-2026-41089CriticalCVSS 9.8

Windows Netlogon Remote Code Execution Vulnerability

Published
May 22, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-41089 →

📋 Description

Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.

🎯 Affected products13

  • 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 2022, 23H2 Edition (Server Core installation)
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5087538 (Security Update) — fixed build 10.0.17763.8755 KB5087545 (Security Update) — fixed build 10.0.20348.5139 KB5087424 (Security Hotpatch Update) — fixed build 10.0.20348.5074 KB5087539 (Security Update) — fixed build 10.0.26100.32860 KB5087423 (Security Hotpatch Update) — fixed build 10.0.26100.32772 KB5087541 (Security Update) — fixed build 10.0.25398.2330 KB5087537 (Security Update) — fixed build 10.0.14393.9140 KB5087470 (Monthly Rollup) — fixed build 6.2.9200.26079 KB5087471 (Monthly Rollup) — fixed build 6.3.9600.23181

🔗 References (19)