CISA Known Exploited Vulnerability

CVE-2025-33073

Microsoft · Windows

Microsoft Windows SMB Client Improper Access Control Vulnerability

Date added
BOD 22-01 due date
CWE CWE-284
Ransomware Unknown

CISA description

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.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.