Siemens SIMATIC ET 200 DoS Vulnerability (CVE-2025-40944) Advisory
Security AdvisorySA-CORE-2025-001CriticalSiemens
Affected:
- SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0)
- SIMATIC ET 200MP IM 155-5 PN HF
- SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0)
- SIMATIC ET 200SP IM 155-6 PN HA
- SIMATIC ET 200SP IM 155-6 PN R1 (6ES7155-6AU00-0HMO)
Fixed in:
- SIMATIC ET 200SP IM 155-6 PN HA >= V1.3
- SIMATIC ET 200SP IM 155-6 PN R1 >= V6.0.1
- SIMATIC ET 200SP IM 155-6 PN/3 HF >= V4.2.2
Referenced CVEs: CVE-2025-40944 · 7.5
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