PT-2026-50380 · Quanos Solutions Gmbh · Schema St4

Publicado 2026-06-17 · Atualizado 2026-06-17 · CVE-2026-11857

Mitre

CVSS v4.0

8.4

Alta

Vetor base

AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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. The service is configured with TypeFilterLevel.Full and is bound to local interfaces only through named pipes. A local authenticated attacker can connect to the local named pipe, obtain the .NET Remoting endpoint, and send specially crafted serialized objects. Successful exploitation results in arbitrary code execution in the context of the update process with NT AUTHORITYSYSTEM privileges. Network-only exploitation is not possible and local host access with an authenticated user session is required.

Correção

Deserialization of Untrusted Data

Enumeração de Fraquezas

CWE-502

Identificadores relacionados

CVE-2026-11857

Produtos afetados

Schema St4

Referências · 1

• https://r.sec-consult.com/quanos · Nota