CVE-2024-0400Network attack vector

Authenticated remote code execution via crafted LINQ query

Published Mar 27, 2024 · Updated Oct 16, 2025

Code injection in Hitachi Energy MACH SCM 4.0 through 4.38 allows remote authenticated users to execute arbitrary server commands. The SCM server accepts a specially crafted LINQ query from the System Manager client and lets it bypass query validation before evaluating attacker-controlled code. A valid System Manager client session is required, and successful exploitation runs commands remotely on the SCM server.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Hitachi Energy MACH SCM 4.0 through 4.38 allows remote authenticated users to execute arbitrary server commands. The SCM server accepts a specially crafted LINQ query from the System Manager client and lets it bypass query validation before evaluating attacker-controlled code. A valid System Manager client session is required, and successful exploitation runs commands remotely on the SCM server.

The record

CVE
CVE-2024-0400
Published
Mar 27, 2024
Updated
Oct 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, CAPEC-551, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5Hitachi EnergyCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-551Modify Existing Service
T1059Command and Scripting Interpreter

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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