CVE-2026-28205

9.2 criticalEPSS 0.4%

Critical (9.2) in openplcproject openplc v3 firmware. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H

CVSS 3.1

9.8 critical

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-1188
Published: 2026-04-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openplcproject:openplc_v3_firmware

References

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

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