CVE-2026-50039: libIEC61850 1.0.0 through 1.6.1

CVE-2026-50039. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00458 (percentile 0.38702), scored 22-Oct-2026.

Affected technology

libIEC61850 · 1.0.0 through 1.6.1
MZ Automation

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker may cause a memory corruption via a Read Request. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 24-Oct-2026 15:08 UTC

CWE: CWE-121
CCR priority: 30.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
EPSS: 0.00458 · percentile 0.38764 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-50039.html