CVE-2025-33073

critical-risk

Published 2025-06-10

Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.

Do I need to act?

42.0% chance of exploitation in next 30 days

EPSS score — higher than 58% of all CVEs

CISA KEV: actively exploited in the wild

On the Known Exploited Vulnerabilities catalog — federal agencies must patch

1 public exploit available

52330

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

NETWORK / LOW complexity

Windows 10 1507

Windows 10 1607

Windows 10 1809

Windows 10 21H2

Windows 10 22H2

Windows 11 22H2

Windows 11 23H2

Windows 11 24H2

Windows Server 2008

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2022 23H2

Microsoft

Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33073

Third Party Advisory https://www.vicarius.io/vsociety/posts/cve-2025-33073-detection-script-improper-...

Mitigation https://www.vicarius.io/vsociety/posts/cve-2025-33073-mitigation-script-improper...

US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...

/ 100

critical-risk

Severity 30/34 · Critical

Exploitability 24/34 · High

Exposure 20/34 · Moderate