CVE-2024-34057Network attack vector

Remote client crashes via unchecked MMS messages

Published Sep 18, 2024 · Updated Sep 19, 2024

Buffer overflow in Triangle MicroWorks IEC 61850 Client Source Code Library before 12.2.0 allows remote attackers to crash clients via MMS messages. The message-processing path copies received data without checking that the destination buffer is large enough. No authentication or user interaction is required; a crafted MMS message can terminate an application that embeds the affected client library, interrupting its IEC 61850 service.

CVSS severity8.2
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Triangle MicroWorks IEC 61850 Client Source Code Library before 12.2.0 allows remote attackers to crash clients via MMS messages. The message-processing path copies received data without checking that the destination buffer is large enough. No authentication or user interaction is required; a crafted MMS message can terminate an application that embeds the affected client library, interrupting its IEC 61850 service.

The record

CVE
CVE-2024-34057
Published
Sep 18, 2024
Updated
Sep 19, 2024
Vendor
Triangle MicroWorks
Product
IEC 61850 Client Source Code Library
Classifications
CWE-120, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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=0 <12.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Triangle MicroWorks · IEC 61850 Client Source Code Libraryversion=0 <12.2.0

Published CVSS scores

8.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
7.5NVDCVSS:3.1/AV:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T0814Denial of Service

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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