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CVE-2026-50103

MEDIUM
6.5
CVSS 3.1
Description
A NULL pointer dereference in the L2 GOOSE and R-GOOSE shared parser, which may allow a network-adjacent attacker to crash a subscribing application by sending a crafted GOOSE frame containing a malformed TLV value.

Metadata

CVE ID
CVE-2026-50103
State
PUBLISHED
Assigner
icscert
Reserved
2026-06-09 20:01 UTC
Published
2026-07-23 20:50 UTC
Last updated
2026-07-23 20:50 UTC
Primary CWE
CWE-228
CWE-228 Improper Handling of Syntactically Invalid Structure
Vendor / Product
MZ Automation / libIEC61850
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products (1)
VendorProductPlatformVersions
MZ Automation libIEC61850 — 1.0.0 ≤ 1.6.1
Weakness (CWE)
CWESourceDescription
CWE-228 cna CWE-228 Improper Handling of Syntactically Invalid Structure
CVSS scores (2)
ScoreSeverityVersionSourceVector
7.1 HIGH 4.0 cna CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References (1)
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