mz-automation libiec61850 up to 1.6.1 MMS Request mms_mapping.c checkDataSetAccess out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k1.01

Summaryinfo

A vulnerability was found in mz-automation libiec61850 up to 1.6.1. It has been declared as problematic. Impacted is the function checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2026-18583. The attack can be launched remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability was found in mz-automation libiec61850 up to 1.6.1 and classified as problematic. Affected by this issue is the function checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-18583. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

Upgrading to version 1.6.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 062062daf4cb50c7aa76e01d6fb4d58fc9278a7d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libiec61850 1.6.2
Patch: 062062daf4cb50c7aa76e01d6fb4d58fc9278a7d

Timelineinfo

08/02/2026 Advisory disclosed
08/02/2026 +0 days VulDB entry created
08/02/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-7v2x-39mw-2979
Status: Confirmed

CVE: CVE-2026-18583 (🔒)
GCVE (CVE): GCVE-0-2026-18583
GCVE (VulDB): GCVE-100-385412
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/02/2026 21:19
Changes: 08/02/2026 21:19 (65)
Complete: 🔍
Submitter: Carnegie
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844921: MZ Automation GmbH libiec61850 1.6.1 Out-of-bounds Read (by Carnegie)

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