The July 2026 Scan Cab is available

🚨 The Signal: Microsoft released the July 2026 Scan Cab for offline Windows update compliance checks. This enables air-gapped environments to verify security patch status without direct internet access, crucial for maintaining security posture in isolated networks.

The Impact

Security teams in air-gapped environments are affected, risking non-compliance if the new Scan Cab is not deployed.

  • Security teams: Risk of outdated patch assessments in offline systems.
  • IT operations: Manual deployment required for air-gapped networks.
  • Compliance officers: Potential for non-compliance with patching policies.

The Action

  1. Identify all systems and applications in your environment that utilize the Wsusscn2.cab file for offline update scanning.
  2. Download the July 2026 Scan Cab from the official Microsoft download center.
  3. Deploy the new Scan Cab to all identified offline systems and update deployment tools.
  4. Verify that offline systems are correctly utilizing the updated Scan Cab for security update compliance checks.

Domain: Other · Impact: medium · Workload: Other · Essential Eight: Patch Operating Systems · ISM: ISM-1407, ISM-1501, ISM-1621, ISM-1622, ISM-1623, ISM-1654, ISM-1655, ISM-1694, ISM-1695, ISM-1696, ISM-1701, ISM-1702, ISM-1877, ISM-1889, ISM-1902