CVE-2026-35556 PUBLISHED

Plaintext storage of a password in OpenPLC_V3

Assigner: icscert
Reserved: 06.04.2026 Published: 09.04.2026 Updated: 09.04.2026

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

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 9.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	OpenPLC_V3
Product	OpenPLC_V3
Versions	Default: unaffected Version All versions is affected

Workarounds

OpenPLC_v3 is now considered to be end of life. Users are recommended to upgrade to OpenPLC Runtime v4 ( https://github.com/autonomy-logic/openplc-runtime ).

Credits

Shriyans Sudhi (ss0x00) from Rochester Institute of Technology (RIT) finder

References

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

Problem Types

CWE-256 Plaintext storage of a password CWE