Symphony Plus Sd Series
Monthly
Denial-of-service in ABB industrial control system products (AC800M, Symphony Plus SD/MR, S+ Operations) allows attackers on adjacent IEC 61850 networks to crash communication modules via malformed protocol packets. The vulnerability affects critical infrastructure PLCs and SCADA systems widely deployed in power substations and industrial automation. CVSS 7.1 (High) but low EPSS (0.02%) indicates limited attacker interest to date. No public exploit identified at time of analysis, and CISA SSVC a
Denial-of-service in ABB industrial control system products (AC800M, Symphony Plus SD/MR, S+ Operations) allows attackers on adjacent IEC 61850 networks to crash communication modules via malformed protocol packets. The vulnerability affects critical infrastructure PLCs and SCADA systems widely deployed in power substations and industrial automation. CVSS 7.1 (High) but low EPSS (0.02%) indicates limited attacker interest to date. No public exploit identified at time of analysis, and CISA SSVC a