Vulnerability in Openplc

CVE-2025-1066

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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.005 (37.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-1066: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

References

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.