Description
A weakness has been identified in mz-automation libiec61850 up to 1.6.1. This issue affects the function checkDataSetAccess of the file src/iec61850/server/mms_mapping/mms_mapping.c of the component MMS Request Handler. This manipulation causes out-of-bounds read. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.6.2 is capable of addressing this issue. Patch name: 062062daf4cb50c7aa76e01d6fb4d58fc9278a7d. Upgrading the affected component is recommended. The vendor was contacted early about this disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| mz-automation | libiec61850 | 1.6.0, 1.6.1 | 1.6.2 |
References
- VDB-385412 | mz-automation libiec61850 MMS Request mms_mapping.c checkDataSetAccess out-of-bounds vdb-entry technical-description
- VDB-385412 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-18583 | CVE Analysis and Report third-party-advisory
- Submit #844921 | MZ Automation GmbH libiec61850 1.6.1 Out-of-bounds Read third-party-advisory
- https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7v2x-39mw-2979 related
- https://github.com/gff-cw/information/issues/3 exploit issue-tracking
- https://github.com/mz-automation/libiec61850/commit/062062daf4cb50c7aa76e01d6fb4d58fc9278a7d patch
- https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2 patch
- https://github.com/mz-automation/libiec61850/ product