Home/CVE/A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiat
CVE

CVE-2025-1445

A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiat

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.

HIGH · CVSS 7.5 EPSS 0.00178
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-820Missing Synchronization
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cybersecurity@hitachienergy.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Mar 2025 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2025-icsa-25-093-01
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://publisher.hitachienergy.com/preview?DocumentId=8DBD000207&languageCode=en&Preview=true
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