Out-of-bounds Read in Mz Automation Gmbh Libiec61850
CVE-2026-66364
The GOOSE payload parser contains a boundary handling flaw that can be triggered by a single unauthenticated Layer 2 multicast frame on the process bus. When processing specific payload fields, an attacker controlled inner element lengt…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mz Automation Gmbh Libiec61850 — versions 0, 1.6.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-66364?
- CVE-2026-66364 is a medium-severity vulnerability in Mz Automation Gmbh Libiec61850, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-07-30.
- How severe is CVE-2026-66364?
- Medium severity. CVSS v3 base score is 6.5 out of 10.