#VU121229 Improper access control in Windows Server - CVE-2026-0386

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Main Vulnerability Database Vulnerabilities #VU121229

#VU121229 Improper access control in Windows Server - CVE-2026-0386

Published: January 13, 2026


Vulnerability identifier: #VU121229
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-0386
CWE-ID: CWE-284
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Windows Server
Software vendor:
Microsoft

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in Windows Deployment Services. A remote attacker on the local network can bypass implemented security restrictions and execute arbitrary code on the system.


Remediation

Install updates from vendor's website.

External links