Out-of-bounds Read in Mz Automation Gmbh Libiec61850
CVE-2026-66349
The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its inter…
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-2026-66349?
- CVE-2026-66349 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-2026-66349?
- Medium severity. CVSS v3 base score is 6.5 out of 10.