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Signals Exploited in the wild (KEV) 0 Patch available 0 No fix listed 2 Has CVE 2

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Weakness (CWE) CWE-502 Deserialization of Untrusted Data 1 CWE-862 Missing Authorization 1

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Vendor: Quanos Solutions GmbH × Clear all filters

TI-2026-10233 CVE-2026-11858 · GHSA-62mq-g5fg-59fx

Missing authorization in Quanos SCHEMA ST4 Client Update Service allows arbitrary file overwrite as SYSTEM

Priority LOW 37

Quanos SCHEMA ST4 on-premises contains a local privilege escalation vulnerability in the Client Update Service.

CVSS 4.0HIGH 8.4· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-06-17 · No fix listed CWE-862

TI-2026-10232 CVE-2026-11857 · GHSA-fmx7-jmr3-4jw2

Insecure .NET Remoting deserialization in Quanos SCHEMA ST4 Client Update Service allows local privilege escalation

Priority LOW 38

Quanos SCHEMA ST4 on-premises contains a local privilege escalation vulnerability in the Client Update Service due to insecure deserialization in the .NET Remoting service.

CVSS 4.0HIGH 8.4· Local · Low privileges · No interaction · EPSS 0.00273 · Published 2026-06-17 · No fix listed CWE-502

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