PT-2026-66864 · Unknown · Libiec61850

CVE-2026-52134

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Published

2026-07-31

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Updated

2026-08-01

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions libiec61850 version 1.6
Description An issue exists in the parseGoosePayload() function located in /goose/goose receiver.c that allows attackers to bypass authentication by using a captured GOOSE frame. GOOSE (Generic Object Oriented Substation Event) is a communication protocol used in electrical substations for fast transmission of event data.
Recommendations As a temporary workaround, consider restricting the use of the parseGoosePayload() function until a patch is available.

Exploit

Fix

Improper Access Control

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Weakness Enumeration

Related Identifiers

CVE-2026-52134

Affected Products

Libiec61850