{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3437","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","state":"PUBLISHED","assignerShortName":"icscert","dateReserved":"2026-03-02T13:08:19.404Z","datePublished":"2026-03-03T17:44:59.904Z","dateUpdated":"2026-06-25T14:49:33.196Z"},"containers":{"cna":{"providerMetadata":{"orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","shortName":"icscert","dateUpdated":"2026-06-25T14:49:33.196Z"},"title":"Improper Restriction of Operations within the Bounds of a Memory Buffer in Portwell Engineering Toolkits","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-119","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer","type":"CWE"}]}],"affected":[{"vendor":"Portwell","product":"Portwell Engineering Toolkits","versions":[{"status":"affected","version":"0","lessThanOrEqual":"4.8.2","versionType":"custom"},{"status":"unaffected","version":"v5.0.0"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"An improper restriction of operations within the bounds of a memory buffer vulnerability in Portwell Engineering Toolkits version 4.8.2 could allow a local authenticated attacker to read and write to arbitrary memory via the Portwell Engineering Toolkits driver. Successful exploitation of this vulnerability could result in escalation of privileges or cause a denial-of-service condition.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An improper restriction of operations within the bounds of a memory buffer vulnerability in Portwell Engineering Toolkits version 4.8.2 could allow a local authenticated attacker to read and write to arbitrary memory via the Portwell Engineering Toolkits driver. Successful exploitation of this vulnerability could result in escalation of privileges or cause a denial-of-service condition.</p><br>"}]}],"references":[{"url":"https://software.portwell.tw/security-advisory/PWS-2026-3437.html","tags":["vendor-advisory","patch"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-04.json"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"HIGH","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":9.3,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.8,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}}],"solutions":[{"lang":"en","value":"Remediation\nStatus: \n\n\n\n\n\n   -\nAffected: Portwell Engineering Toolkits Version 4.8.2 and earlier\n\n\n\n\n\n   -\nFixed Version: Portwell Engineering Toolkits version [v5.0.0]","supportingMedia":[{"type":"text/html","base64":false,"value":"<p><span>Remediation\nStatus: </span></p>\n\n<p><span>&nbsp;&nbsp;&nbsp;-\nAffected: Portwell Engineering Toolkits Version 4.8.2 and earlier</span></p>\n\n<p><span>&nbsp;&nbsp; -\nFixed Version: Portwell Engineering Toolkits version [</span><span>v5.0.0</span><span>]</span></p>"}]}],"credits":[{"lang":"en","value":"Jason Huang from Cyber Threat & Product Defense Center of TXOne Networks Inc.","type":"finder"}],"source":{"advisory":"ICSA-26-062-04","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-03T18:58:38.290857Z","id":"CVE-2026-3437","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-03T19:02:29.314Z"}}]}}