Trust Boundary Violation in Windows and Windows Server - CVE-2026-33828
Published: June 12, 2026
Vulnerability identifier: #VU134442
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-2026-33828
CWE-ID: CWE-501
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to trust boundary violation in Windows Device Health Attestation (DHA), which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2026-33828
Install updates from vendor's website.