Description
A vulnerability was found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function deleteDataSetValuesShadowBuffer of the file src/iec61850/server/mms_mapping/reporting.c of the component URCB Revalidation. The manipulation results in use after free. The attack needs to be approached locally. The exploit has been made public and could be used. Upgrading to version 1.6.2 is sufficient to fix this issue. The patch is identified as 486fd57f3aed65bb9d636ff00f9ddce2e450b168. Upgrading the affected component is advised.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MZ Automation | libiec61850 | 1.6.0, 1.6.1 | 1.6.2 |
References
- VDB-386569 | MZ Automation libiec61850 URCB Revalidation reporting.c deleteDataSetValuesShadowBuffer use after free vdb-entry technical-description
- VDB-386569 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-19108 | CVE Analysis and Report third-party-advisory
- Submit #864520 | MZ Automation libiec61850 1.6.1 Memory Corruption(heap-use-after-free) third-party-advisory
- https://github.com/mz-automation/libiec61850/issues/596 issue-tracking
- https://github.com/user-attachments/files/29163236/POC.zip exploit
- https://github.com/mz-automation/libiec61850/commit/486fd57f3aed65bb9d636ff00f9ddce2e450b168 patch
- https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2 patch