CVE-2022-38138Network attack vector

Service interruption via uninitialized-pointer access

Published Oct 11, 2022 · Updated Apr 16, 2025

Uninitialized-pointer access in Triangle MicroWorks IEC 61850 and IEC 60870-6 libraries allows remote attackers to interrupt service. Affected client or server code dereferences a small set of pointers before initialization; the specific functions and triggering input are undisclosed. Unauthenticated network input can interrupt implementations embedding IEC 61850 C 11.2.0 and earlier, IEC 61850 C++, C#, or Java 5.0.1 and earlier, or IEC 60870-6 C++ 4.4.3 and earlier.

CVSS severity7.5

High

EPSS probability0.86%

Next 30 days · Sep 16, 2026

Known exploitationUnconfirmed

Based on sourced intelligence

Hinoki checkNot available

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Summary

What happened

The record

CVE: CVE-2022-38138
Published: Oct 11, 2022
Updated: Apr 16, 2025

Vendor: Triangle MicroWorks
Product: IEC 61850 Source Code Library
Classifications: CWE-824, T1499

Attack vector: network
Privileges: unauthenticated

Timeline

How it unfolded

Oct 11, 2022CVE publishedPublication date reported by the CVE source.
Apr 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?

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

Affected versionversion=Any client or server using the C++, C#, or Java language library with a version number of 5.0.1 or earlier
Affected versionversion=Any client or server using the C language library with a version number of 11.2.0 or earlier

What conditions does exploitation require?

Attack vectornetwork

Required privilegesunauthenticated

What is affected?

Triangle MicroWorks · IEC 61850 Source Code Libraryversion=Any client or server using the C++, C#, or Java language library with a version number of 5.0.1 or earlier; version=Any client or server using the C language library with a version number of 11.2.0 or earlier

Triangle MicroWorks · IEC 60870-6 (TASE.2/ICCP) Source Code Libraryversion=Any client or server using a C++ language library with a version number of 4.4.3 or earlier

Published CVSS scores

7.5ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5NISTCVSS: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 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-824Access of Uninitialized Pointer

T1499Endpoint Denial 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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