CVE-2026-5057: Aten Unizon

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

ATEN Unizon RpcProvider Missing Authentication Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ATEN Unizon. Authentication is not required to exploit this vulnerability. The specific flaw exists within the RpcProvider class. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-29041.

Affected products

• Aten Unizon: version 2.6.253.001 only

Published 2026-07-29. Last modified 2026-07-30.