Vulnerabilities

CVSS

8.1 High

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Risk score

64.8

Published

2026-07-23

Status

Published

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.

Weaknesses

CWE-122

Coverage 1

vulnerability

MZ Automation libIEC61850

MZ Automation libIEC61850 versions 1.0.0 through 1.6.1 are vulnerable to several stack and heap-based buffer overflows, potentially allowing an unauthenticated attacker to crash critical IEC 61850 services or execute arb…

CISA Advisories · Jul 23, 2026 High

CVE-2026-50039CVE-2026-49035CVE-2026-50103iec61850buffer overflowindustrial control systems

All articles mentioning it

Advisories and references

• cisa.gov/news-events/ics-advisories/icsa-26-204-06