securityonline.info 6/1/2026, 2:47:57 AM · external

Netlogon RCE bug CVE-2026-41089 exposes domain controllers

Netlogon RCE bug CVE-2026-41089 exposes domain controllers
CyberSIXT Evidence Panel
Primary Source msrc.microsoft.com
CVE Intel
CISA KEV Not in KEV
Patch Patch Available

THE article highlights an active security exploit targeting corporate networks through a critical Netlogon Remote Code Execution (RCE) vulnerability, designated as CVE-2026-41089, with a CVSS score of 9.8. Attackers can control domain controllers by sending crafted requests, allowing code execution without user interaction. Microsoft has issued a patch for this flaw as part of its May 2026 Patch Tuesday update, addressing a total of 118 vulnerabilities.

System administrators are advised to apply fixes, isolate affected servers from untrusted networks, and monitor traffic for unusual requests to prevent exploitation. Continuous patch management is emphasized as crucial for long-term security.

View Primary Source Via securityonline.info

Article by CyberSIXT

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