Official Module Sample

CVE-2026-41089 - Netlogon Stack Buffer Overflow

This is a production-style module page template for third-party developers in the AI Security Tool ecosystem. It combines technical clarity, user guidance, and required cross-linking in a single consistent layout.

Severity Overview

Vulnerability profile

CVE

CVE-2026-41089

Risk

Critical (CVSS 9.8)

Weakness

CWE-121

Attack Vector

Network, Unauthenticated

Business impact

Successful exploitation may allow full domain controller compromise, lateral movement, and direct access to identity infrastructure.

Operational relevance

Netlogon exposure is high-priority for SOC and IR teams because attack traffic can blend with domain communication patterns.

Threat Model

Attack scenario

  1. 1. Discovery: attacker locates a reachable domain controller endpoint.
  2. 2. Trigger: crafted Netlogon request causes stack corruption in vulnerable processing path.
  3. 3. Execution: memory corruption enables arbitrary code execution context.
  4. 4. Expansion: attacker pivots to full Active Directory takeover and persistence.

Detection

Indicators of compromise and hunting guidance

Primary signals

Telemetry priorities

Hardening

Mitigation checklist

  1. 1. Apply latest Microsoft security updates on all domain controllers.
  2. 2. Restrict Netlogon and related RPC exposure to trusted network segments.
  3. 3. Enable high-sensitivity behavior monitoring around identity-critical processes.
  4. 4. Add update subscriptions via the central updates center.

Execution

How to use with AI Security Tool

CLI examples

bash
python3 CVE-2026-41089.py 10.0.50.21 corp.local
python3 CVE-2026-41089.py 10.0.50.21 corp.local -l 130
python3 CVE-2026-41089.py 10.0.50.21 corp.local -l 200 -t 10

Ecosystem Standard

Required cross-linking for third-party module pages