SB2026011369 - Remote code execution in Microsoft Windows Deployment Services
Published: January 13, 2026
Security Bulletin ID
SB2026011369
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-0386)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 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
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 update from vendor's website.