CVE-2026-35556

critical · 9.2

OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.

9.2

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2026-04-09

Published

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-256

Affected products

Vendor	Product	Affected versions
openplcproject	openplc_v3_firmware	all versions
openplcproject	openplc_v3	all versions

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-35556