CVE-2026-28205
Received Received - Intake
Insecure Default Initialization in OpenPLC_V3 Enables Authentication Bypass

Publication date: 2026-04-09

Last updated on: 2026-04-28

Assigner: ICS-CERT

Description
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
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Meta Information
Published
2026-04-09
Last Modified
2026-04-28
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-28205
EUVD
EUVD-2026-21009
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openplcproject openplc_v3_firmware *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-1188 The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.
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Executive Summary

The vulnerability in OpenPLC_V3 is an Initialization of a Resource with an Insecure Default. This means that the system is set up with insecure default settings that allow an attacker to bypass authentication mechanisms.

Specifically, an attacker could exploit this weakness via an API to gain unauthorized access to the system.

Impact Analysis

This vulnerability can have a severe impact because it allows an attacker to bypass authentication and gain unauthorized access to the system.

Such unauthorized access could lead to control or manipulation of the system, potentially causing operational disruptions or exposing sensitive information.

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