A vulnerability exists in RTU IEC 61850 client and server functionality that could impact…
Priority MEDIUM 44CWE-820Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiation of an open IEC61850 TLS connection takes place in specific timing situations, when IEC61850 communication is active. Precondition is that IEC61850 as client or server are configured using TLS on RTU500 device. It affects the CMU the IEC61850 stack is configured on.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00335 27th percentileScored 2026-11-07
Fix Fixed RTU500 (Hitachi Energy): 13.7.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Hitachi Energy | RTU500 | 13.7.1 – 13.7.4 | 13.7.6 | Patch available | CNA |
- RTU500 VendorHitachi Energy Affected 13.7.1 – 13.7.4 Fixed in 13.7.6 Patch available CNA
Remediation
- Fix · CNA RTU500 (Hitachi Energy) Fixed in 13.7.6
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1445
- 2026-10-03 Alias added: GHSA-hcgq-vpp8-j6q4
References
More Hitachi Energy vulnerabilities
- TI-2019-03985 ABB MicroSCADA Pro SYS600 Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
- TI-2018-10635 Improper authentication in ICS-CERT ABB eSOMS CVSS 3.0CRITICAL 9.8
- TI-2024-01871 Heap-based buffer overflow in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
- TI-2026-07105 Path traversal in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
- TI-2019-13270 Path traversal in Relion 670 Series CVSS 3.1CRITICAL 10.0
- TI-2026-07104 Missing authentication in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
Sources
- CVE-2025-1445 · CVE Program
- CVE-2025-1445 · NVD
- FIRST EPSS
- GHSA-hcgq-vpp8-j6q4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences