CVE-2026-35556

9.2 criticalEPSS 0.3%

Critical (9.2) in openplcproject openplc v3 firmware. EPSS 0.3% chance of exploitation in the next 30 days.

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

Severity

CVSS 4.0

9.2 critical

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 3.1

7.5 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-256
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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