Hitachi Energy MicroSCADA X SYS600 up to 10.6 IEC 61850 integrity check

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Hitachi Energy MicroSCADA X SYS600 up to 10.6 and classified as critical. This affects an unknown part of the component IEC 61850. Executing a manipulation can lead to integrity check. The identification of this vulnerability is CVE-2025-39203. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Hitachi Energy MicroSCADA X SYS600 up to 10.6 and classified as critical. This vulnerability affects an unknown code of the component IEC 61850. The manipulation with an unknown input leads to a integrity check vulnerability. The CWE definition for the vulnerability is CWE-354. The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at publisher.hitachienergy.com. This vulnerability was named CVE-2025-39203 since 04/16/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19002). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (Hitachi Energy): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integrity check
CWE: CWE-354 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2025 🔍
06/24/2025 +69 days 🔍
06/24/2025 +0 days 🔍
10/07/2025 +105 days 🔍

Sourcesinfo

Advisory: publisher.hitachienergy.com
Status: Confirmed

CVE: CVE-2025-39203 (🔍)
GCVE (CVE): GCVE-0-2025-39203
GCVE (VulDB): GCVE-100-313744
EUVD: 🔍

Entryinfo

Created: 06/24/2025 14:24
Updated: 10/07/2025 14:10
Changes: 06/24/2025 14:24 (66), 06/24/2025 15:16 (1), 06/24/2025 16:38 (11), 10/07/2025 14:10 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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