Description
A vulnerability exists in RTU500 IEC 60870-5-104 controlled station functionality and IEC 61850 functionality, that allows an attacker performing a specific attack sequence to restart the affected CMU. This vulnerability only applies, if secure communication using IEC 62351-3 (TLS) is enabled.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Hitachi Energy | RTU500 | 13.4.1 – ≤ 13.4.4, 13.5.1 – ≤ 13.5.3, 13.6.1, 13.7.1 – ≤ 13.7.4 | 13.7.6 |
Advisories 2
- ICSA-25-093-01 Hitachi Energy RTU500 Series (Update B) CISA ICS & IT advisories · Sep 9, 2025
- WID-SEC-2025-0637 Hitachi Energy RTU500: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Mar 25, 2025