CVE-2025-39203

7.1 highEPSS 0.2%

High (7.1) in hitachienergy microscada x sys600. EPSS 0.2% chance of exploitation in the next 30 days.

A vulnerability exists in the IEC 61850 of the MicroSCADA X SYS600 product. An IEC 61850-8 crafted message content from IED or remote system can cause a denial of service resulting in disconnection loop.

Severity

CVSS 4.0

7.1 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-11-01)
CWE: CWE-354
Published: 2025-06-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hitachienergy:microscada_x_sys600

References

https://publisher.hitachienergy.com/preview?DocumentID=8DBD000218&LanguageCode=en&DocumentPartId=&Action=Launch

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