What is CVE-2025-1066?

CVE-2025-1066 is a critical-severity vulnerability in Openplc, classified under CWE-434 UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE. CVSS score: 9.8/10. Published 2025-02-06.

How severe is CVE-2025-1066?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Openplc

CVE-2025-1066

OpenPLC_V3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns.

EPSS: 0.004 (36.0th 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

Openplc — versions V3

References

cret@cert.org
cret@cert.org

Frequently asked questions

What is CVE-2025-1066?: CVE-2025-1066 is a critical-severity vulnerability in Openplc, classified under CWE-434 UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE. CVSS score: 9.8/10. Published 2025-02-06.
How severe is CVE-2025-1066?: Critical severity. CVSS v3 base score is 9.8 out of 10.