CVE-2026-50032
HIGHNULL Pointer Dereference in MZ Automation libIEC61850
Title source: cnaDescription
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