CVE-2026-5057

HIGH

ATEN Unizon RpcProvider Missing Authentication Denial-of-Service Vulnerability

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References
X_Research Advisory x_research-advisory
ZDI-26-272
https://www.zerodayinitiative.com/advisories/ZDI-26-272/
Vendor Advisory vendor-advisory
vendor-provided URL
https://www.aten.com/global/en/supportcenter/info/security-advisory/26/

Scores

CVSS v3 7.5
EPSS 0.0048
EPSS Percentile 39.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-306
Status published
Products (1)
ATEN/Unizon 2.6.253.001
Published Jul 29, 2026
Tracked Since Jul 30, 2026