Exploit for Stack-based Buffer Overflow in Microsoft

## https://sploitus.com/exploit?id=BCD454D5-C883-5A69-A500-46E26E95A7C6
⚡ CVE-2026-41089 | Netlogon RCE Core Diagnostic Module
  

  
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  🎯 Executive Summary & Vulnerability Intelligence
  
  CVE-2026-41089 is a critical unauthenticated Remote Code Execution (RCE) flaw in the Windows Netlogon Remote Protocol (MS-NRPC). The vulnerability stems from a severe memory corruption flaw within the Remote Procedure Call (RPC) packet handling logic (CWE-121: Stack-based Buffer Overflow), enabling arbitrary binary execution inside the privileged context of the Local Security Authority Subsystem Service (lsass.exe).

  
    
      
        
          Attribute
          Specification Data
          Security Assessment
        
      
      
        
          CVE Tracking ID
          CVE-2026-41089
          Zero-Day Critical Asset Track
        
        
          CVSS v3.1 Base Score
          9.8 / 10.0
          CRITICAL [████████████████████] 100%
        
        
          Attack Vector
          Network (Remote / Unauthenticated)
          Zero authentication required
        
        
          Vulnerability Class
          CWE-121 (Stack-based Buffer Overflow)
          LSASS Memory Corruption / Heap Leakage
        
        
          Target Component
          MS-NRPC Protocol Engine
          Windows Server Domain Controllers
        
        
          Execution Scope
          NT AUTHORITY\SYSTEM
          Full Domain Compromise / Golden Ticket Path
        
      
    
  

  

  
  
  

  📐 Exploitation Topology & Vector Flow

```mermaid
sequenceDiagram
    autonumber
    actor Attacker as Unauthenticated Threat Actor
    participant Network as Subnet Firewall / Edge
    participant DC as Windows Server DC (lsass.exe)
    participant AD as Active Directory Domain
    
    Attacker->>Network: Send Crafted MS-NRPC Bind Request
    Network->>DC: Forward RPC Payload (Port 445 / 135)
    DC-->>DC: Trigger Memory Overflow (CWE-121) in Netlogon Engine
    DC-->>DC: Overwrite Return Address / Hijack LSASS Execution Flow
    DC->>Attacker: Spawn Reverse Shell / SYSTEM Token Stealing
    Attacker->>AD: Execute NTDS.dit Extraction & Compromise Ecosystem