S+ Operations

1 known vulnerabilities.

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Medium 6.5

CVE-2025-3756

Denial of Service Vulnerabilities in System 800xA, Symphony® Plus IEC 61850

A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE. An attacker with access to IEC 61850 networks could exploit the vulnera bility by using a specially crafted 6…

ABB AC800M (System 800xA) Symphony Plus MR (Melody Rack) Symphony Plus SD Series ICS / OT

Apr 13, 2026