CVE-2024-25366Public exploitNetwork attack vector

Service crash via negative request-buffer index

Published Feb 20, 2024 · Updated Aug 16, 2024

Catalog records attribute an integer overflow to MZ Automation lib60870 1.4.0 that allows remote attackers to crash a service. The cited proof of concept instead targets libIEC61850: a crafted MMS GetNameList request wraps bufPos negative, and mmsServer_handleGetNameListRequest uses it to read outside the request buffer. An unauthenticated TCP connection to an embedded libIEC61850 server is sufficient, but no retrieved authoritative source connects this code path to lib60870, so lib60870 applicability remains unverified.

CVSS severity6.2
Medium
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Catalog records attribute an integer overflow to MZ Automation lib60870 1.4.0 that allows remote attackers to crash a service. The cited proof of concept instead targets libIEC61850: a crafted MMS GetNameList request wraps bufPos negative, and mmsServer_handleGetNameListRequest uses it to read outside the request buffer. An unauthenticated TCP connection to an embedded libIEC61850 server is sufficient, but no retrieved authoritative source connects this code path to lib60870, so lib60870 applicability remains unverified.

The record

CVE
CVE-2024-25366
Published
Feb 20, 2024
Updated
Aug 16, 2024
Vendor
MZ Automation GmbH
Product
lib60870
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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=1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MZ Automation GmbH · lib60870version=1.4.0

Published CVSS scores

6.2NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

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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