CVE-2026-5057

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductUnizon

PublishedJul 29, 2026

First seenJul 29, 2026

Weakness typeCWE-306Missing authentication for critical function

How to fix

Vendor advisories

aten.com/global/en/supportcenter/info/security-advisory/26/

Affected products

Product	Affected versions	Fixed in
ATEN Unizon	2.6.253.001	—

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