Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
MZ Automation libiec61850 MMS Protocol Workflow iec61850_common.c MmsMapping_varAccessSpecToObjectReference heap-based overflow
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
L L N L N L L L 1.9 .0012 2.5 —
AFFECTED
Product Versions Fixed
libiec61850 1.6.0 – —
TIMELINE
Aug 7 Reserved by VulDB
Aug 8 Published (CNA: VulDB)
Aug 9 EXPLOIT PUBLISHED — CVE-2026-19259 (MZ Automation libiec61850). Public exploit reference added.
Description
A vulnerability has been found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function MmsMapping_varAccessSpecToObjectReference of the file src/iec61850/common/iec61850_common.c of the component MMS Protocol Workflow. Such manipulation of the argument GetNamedVariableListAttributesResponse.itemId leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 7, 2026 | Reserved | Reserved by VulDB |
| August 8, 2026 | Published | Published (CNA: VulDB) |
| August 9, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-19259 (MZ Automation libiec61850). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| MZ Automation | libiec61850 | — | 1.6.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19259 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.