CVE-2026-5057

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "Unizon", "vendor": "ATEN", "versions": [{"status": "affected", "version": "2.6.253.001"}]}], "source": "zdi-disclosures@trendmicro.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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.\n\nThe 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."}, {"lang": "es", "value": "Vulnerabilidad de denegaci\u00f3n de servicio por falta de autenticaci\u00f3n en RpcProvider de ATEN Unizon. Esta vulnerabilidad permite a atacantes remotos crear una condici\u00f3n de denegaci\u00f3n de servicio en instalaciones afectadas de ATEN Unizon. La autenticaci\u00f3n no es requerida para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica existe dentro de la clase RpcProvider. El problema resulta de la falta de autenticaci\u00f3n antes de permitir el acceso a la funcionalidad. Un atacante puede aprovechar esta vulnerabilidad para crear una condici\u00f3n de denegaci\u00f3n de servicio en el sistema. Fue ZDI-CAN-29041."}], "id": "CVE-2026-5057", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5057", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-29T19:39:37.435566Z", "version": "2.0.3"}}]}, "published": "2026-07-29T20:17:05.497", "references": [{"source": "zdi-disclosures@trendmicro.com", "url": "https://www.aten.com/global/en/supportcenter/info/security-advisory/26/"}, {"source": "zdi-disclosures@trendmicro.com", "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-272/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "zdi-disclosures@trendmicro.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.6.253.001"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Unizon", "source": "cna", "vendor": "ATEN"}, "product": "unizon", "vendor": "aten"}], "created": "2026-07-29T21:15:04.117932+00:00", "updated": "2026-08-04T12:30:09.195182+00:00", "vendors": ["aten", "aten$PRODUCT$unizon"]}