CVE-2026-28205 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Openplcproject	Openplc V3 Firmware	-
Openplcproject	Openplc V3	-

Related Weaknesses (CWE)

CWE-1188

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2026-28205?

CVE-2026-28205 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.

How severe is CVE-2026-28205?

CVE-2026-28205 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-28205?

Check the references section above for vendor advisories and patch information. Affected products include: Openplcproject Openplc V3 Firmware, Openplcproject Openplc V3.