CVE-2025-39203

MEDIUMNVD 6.56.5—Trending — 3 sources updated this week

6.5

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 v3: 6.5
EG Score: 6.5(medium)
EPSS: 27.8%
KEV: Not listed

Published

June 24, 2025

Last Modified

January 26, 2026

References (1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-354Improper Validation of Integrity Check Value

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-30 03:02 UTCEG score recompute
2026-05-30 03:02 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-39203?

CVE-2025-39203 is a medium vulnerability published on June 24, 2025. 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.

When was CVE-2025-39203 disclosed?

CVE-2025-39203 was first published in the National Vulnerability Database on June 24, 2025, with the most recent update on January 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-39203 actively exploited?

CVE-2025-39203 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-39203?

CVE-2025-39203 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2025-39203?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-39203, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-39203

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CVE-2025-39203

📅 Published

🔄 Last Modified

🔗 References (1)