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CVE-2026-24294

CVE-2026-24294

7.8

High

Published:10 Mar 2026

Last updated:17 Jun 2026

Source:secure@microsoft.com

Modified

Weakness (CWE)

CWE-287Improper Authentication

CVSS Vector

v3.1

Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

View on MITRE Find PoC on GitHub

Description

Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.

References

secure@microsoft.com

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24294

af854a3a-2127-422b-91ae-364da2661108

https://www.vicarius.io/vsociety/posts/cve-2026-24294-detection-script-improper-authentication-vulnerability-in-windows-smb-server

af854a3a-2127-422b-91ae-364da2661108

https://www.vicarius.io/vsociety/posts/cve-2026-24294-mitigation-script-improper-authentication-vulnerability-in-windows-smb-server