CVE-2024-7940Network attack vector

Unauthenticated system access via globally bound service

Published Aug 27, 2024 · Updated Aug 27, 2024

Missing authentication in Hitachi Energy MicroSCADA X SYS600 10.2 through 10.5 allows remote attackers to access the host through an exposed service. A service designed for local-only use binds to every network interface and accepts connections without authenticating the caller. Exploitation requires network reachability and user interaction; Hitachi Energy has not identified the service or disclosed the operations exposed after access.

CVSS severity9.8
Critical
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Hitachi Energy MicroSCADA X SYS600 10.2 through 10.5 allows remote attackers to access the host through an exposed service. A service designed for local-only use binds to every network interface and accepts connections without authenticating the caller. Exploitation requires network reachability and user interaction; Hitachi Energy has not identified the service or disclosed the operations exposed after access.

The record

CVE
CVE-2024-7940
Published
Aug 27, 2024
Updated
Aug 27, 2024
Vendor
Hitachi Energy
Product
MicroSCADA X SYS600
Classifications
CWE-306, CAPEC-115, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.2 <=10.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hitachi Energy · MicroSCADA X SYS600version=10.2 <=10.5

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3Hitachi EnergyCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-115Authentication Bypass
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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