Medium severity · published Jun 24, 2025
CVE-2025-39203
A vulnerability exists in the IEC 61850 of the MicroSCADA X SYS600 product
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MX
MicroSCADA X SYS600 · Hitachi Energy
10.5 through 10.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-39203
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-39203
Vendor Advisory
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000218&LanguageCode=en&DocumentPartId=&Action=Launch
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