{"id":"CVE-2026-35556","state":"PUBLISHED","title":"Plaintext storage of a password in OpenPLC_V3","description":"OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.","publishedAt":"2026-04-09T18:57:26.857Z","updatedAt":"2026-04-10T18:03:50.288Z","severity":{"score":9.2,"label":"Critical","version":"4.0","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","source":"icscert"},"assigner":"icscert","products":["OpenPLC_V3 OpenPLC_V3"],"affected":[{"vendor":"OpenPLC_V3","product":"OpenPLC_V3","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":["https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10"],"weaknesses":["CWE-256"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35556.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35556","state":"PUBLISHED","datePublished":"2026-04-09T18:57:26.857Z","dateUpdated":"2026-04-10T18:03:50.288Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-04-06T15:01:14.388Z"},"containers":{"cna":{"title":"Plaintext storage of a password in OpenPLC_V3","descriptions":[{"lang":"en","value":"OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information."}],"affected":[{"vendor":"OpenPLC_V3","product":"OpenPLC_V3","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10","tags":["government-resource"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"CRITICAL","baseScore":9.2,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-256","lang":"en","description":"CWE-256 Plaintext storage of a password","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-04-09T18:57:26.857Z"},"workarounds":[{"lang":"en","value":"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 ).","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>OpenPLC_v3 is now considered to be end of life. Users are recommended to upgrade to OpenPLC Runtime v4 (<a href=\"https://github.com/autonomy-logic/openplc-runtime\" target=\"_blank\">https://github.com/autonomy-logic/openplc-runtime</a>).</p><br>"}]}],"credits":[{"lang":"en","value":"Shriyans Sudhi (ss0x00) from Rochester Institute of Technology (RIT)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-10T18:03:40.430726Z","id":"CVE-2026-35556","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-10T18:03:50.288Z"}}]}}}