CVE-2026-28205

EUVD-2026-21009 · Published Apr 9, 2026

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.

Technologies

Openplcproject Openplc V3 FirmwareOpenplcproject Openplc V3

Weaknesses

CWE-1188

CVSS scores

v4.09.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
v3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Initial Access Persistence Stealth Defense Impairment Credential Access

T1190Exploit Public-Facing Application T1211Exploitation for Stealth T1542.002Component Firmware T1556Modify Authentication Process

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10

Potentially impacted assets

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