Microsoft Windows: SMB Client Improper Access Control Vulnerability
What to do: Run Windows Update and restart the PC.
- Affects
- Microsoft Windows
- Identifier
- CVE-2025-33073
- What it is
- Microsoft Windows SMB Client contains an improper access control vulnerability that could allow for privilege escalation. An attacker could execute a specially crafted malicious script to coerce the victim machine to connect back to the attack system using SMB and authenticate.
- Official guidance
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.