Link following in Windows Admin Center in Azure Portal - CVE-2026-42834

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Main Vulnerability Database Vulnerabilities #VU132038

Link following in Windows Admin Center in Azure Portal - CVE-2026-42834

Published: May 21, 2026


Vulnerability identifier: #VU132038
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-42834
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows Admin Center in Azure Portal

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an insecure link following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with elevated privileges.


How to mitigate CVE-2026-42834

Install updates from vendor's website.

Sources