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iec 61850 mms

About this tag
The IEC 61850 MMS tag on WindowsForum.com covers discussions about the IEC 61850 protocol's Manufacturing Message Specification (MMS) communication stack, particularly in the context of industrial control systems and operational technology. Recent content focuses on CVE-2025-3756, a denial-of-service vulnerability in ABB's implementation of IEC 61850 MMS affecting products like System 800xA and Symphony Plus. The discussions emphasize OT network segmentation as a mitigation strategy, noting that the flaw is a narrow protocol-handling weakness rather than a Windows-specific bug or remote takeover threat. This tag is relevant for engineers and IT professionals managing industrial environments where IEC 61850 MMS is deployed.
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    CVE-2025-3756 IEC 61850 DoS in ABB: OT Network Segmentation First

    ABB and CISA have republished an industrial-control advisory for CVE-2025-3756, a denial-of-service flaw in ABB’s IEC 61850 MMS communication stack affecting selected System 800xA, Symphony Plus SD Series, Symphony Plus MR, and S+ Operations deployments worldwide. The vulnerability is not a...
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    • abb vulnerabilities denial of service iec 61850 mms industrial control security
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    • Forum: Security Alerts
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