Countering SMBZeroDay CVE-2026-20919 – CYBERDUDEBIVASH SMB DC Zero-Day Auditor v1.1 is Now Live!

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Countering SMBZeroDay CVE-2026-20919 – CYBERDUDEBIVASH SMB DC Zero-Day Auditor v1.1 is Now Live!

To directly counter the SMB zero-day vulnerability CVE-2026-20919 (and related relay & escalation vectors targeting Domain Controllers), CYBERDUDEBIVASH has launched the CYBERDUDEBIVASH SMB DC Zero-Day Auditor v1.1 – a production-grade, enterprise-ready PowerShell tool designed to help security teams rapidly identify and remediate the exact configuration weaknesses attackers exploit.

Repository (limited free mode available): https://github.com/cyberdudebivash/CYBERDUDEBIVASH-SMB-DC-Zero-Day-Auditor.git

Why This Tool Matters Right Now

CVE-2026-20919 exploits misconfigurations in SMB signing enforcement, SMBv1 remnants, IPv6 exposure, legacy Kerberos RC4, and related AD/DC surfaces — allowing credential relay and SYSTEM-level compromise even in environments thought to be hardened.

This tool gives you immediate visibility and actionable intelligence so you can close the gap before exploitation occurs.

Core Capabilities (v1.1 Production Secure Edition)

Local + remote Domain Controller scanning (via WinRM / PSSession)
Checks for:
- SMB signing not enforced (RequireSecuritySignature = false)
- SMBv1 still enabled
- IPv6 binding exposure (CVE-2024-38063 chain risk)
- Legacy Kerberos RC4 allowance
- Basic Ghost SPN indicators (premium unlocks full integration)
Professional HTML executive report + CSV export for SIEM/SOAR
Secure credential handling (PSCredential parameter)
Premium-only: Automated Scheduled Task creation for daily/weekly runs
Verbose logging, exception handling, input validation

Quick Start Examples

Local DC scan (free mode):

PowerShell

.\cyberdudebivash_smb_dc_auditor.ps1 -Verbose

Remote multi-DC + scheduling (premium required):

PowerShell

			
$cred = Get-Credential
.\cyberdudebivash_smb_dc_auditor.ps1 `
  -DomainControllers "DC01.contoso.com","DC02.contoso.com" `
  -Credential $cred `
  -PremiumKey "your-32-char-key" `
  -CreateScheduledTask `
  -Verbose

		

Licensing & Commercial Options

Free/Evaluation: Local single-DC + basic checks
Commercial/Enterprise: Remote multi-DC, scheduled tasks, premium unlock, priority support, custom integrations → Starting at $99 (single org) → Enterprise tiers from $499+ (multi-domain + consulting)

Contact: iambivash@cyberdudebivash.com or DM me directly.

Immediate Next Steps

Clone the repo
Run your first scan (start locally)
Review the HTML/CSV report and apply remediations
Upgrade to premium for automated, fleet-wide protection

Domain Controllers are the crown jewels — CVE-2026-20919 proves attackers know it. With CYBERDUDEBIVASH SMB DC Zero-Day Auditor, you can prove you’re ahead of them.

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