CVE-2022-2970: MZ Automation libIEC61850 Stack-Based Buffer Overflow

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-09-23 · updated 2026-06-17
Weakness: CWE-121

Description

MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) does not sanitize input before memcpy is used, which could allow an attacker to crash the device or remotely execute arbitrary code.

Affected products

mz-automation libiec61850: before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: mz-automation libiec61850 1.5.0. Check the vendor advisory for mitigations.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-22-251-01
https://www.cisa.gov/uscert/ics/advisories/icsa-22-251-01

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