CVE-2025-33073 — Microsoft Windows SMB Client Improper Access Control Vulnerability
2025-10-20 • CISA Known Exploited Vulnerability
[event] 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.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | Windows |
| CWE | CWE-284 |
| CVE ID | CVE-2025-33073 |
| Date Added | 2025-10-20 |
| Due Date | 2025-11-10 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2025-11-10