{ "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": "

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.


" } ] } ], "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": "

Remediation\nStatus:

\n\n

   -\nAffected: Portwell Engineering Toolkits Version 4.8.2 and earlier

\n\n

   -\nFixed Version: Portwell Engineering Toolkits version [v5.0.0]

" } ] } ], "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" } } ] } }