RCE in Openplcproject Openplc_v3
CVE-2026-28205
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.
EPSS: 0.001 (22.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openplcproject Openplc_v3
- Openplcproject Openplc_v3_firmware
- Openplc_v3 — versions All versions
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, government-resource)
Frequently asked questions
- What is CVE-2026-28205?
- CVE-2026-28205 is a critical-severity vulnerability in Openplcproject Openplc_v3, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2026-04-09.
- How severe is CVE-2026-28205?
- Critical severity. CVSS v3 base score is 9.8 out of 10.