CVE-2026-50032

HIGH

NULL Pointer Dereference in MZ Automation libIEC61850

Title source: cna
STIX 2.1

Description

A NULL pointer dereference in the MMS Write Named Variable List handler, which may allow a network adjacent attacker to crash the server by sending a WriteRequest with an empty listOfData field.

References (1)

Core 1
Core References
Government Resource government-resource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-06

Scores

CVSS v3 7.5
EPSS 0.0026
EPSS Percentile 18.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (1)
MZ Automation/libIEC61850 1.0.0 - 1.6.1
Published Jul 23, 2026
Tracked Since Jul 24, 2026