CVE-2026-3437

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:portwell:engineering_toolkits:4.8.2:*:*:*:*:*:*:*

History

05 Mar 2026, 21:38

Type	Values Removed	Values Added
CPE		cpe:2.3:a:portwell:engineering_toolkits:4.8.2:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
First Time		Portwell Portwell engineering Toolkits
References	~~() https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04 -~~	() https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04 - Third Party Advisory, VDB Entry

03 Mar 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-03 18:16

Updated : 2026-03-05 21:38

NVD link : CVE-2026-3437

Mitre link : CVE-2026-3437

CVE.ORG link : CVE-2026-3437

JSON object : View

Products Affected

portwell

engineering_toolkits

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

{"id": "CVE-2026-3437", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}], "cvssMetricV40": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-03T18:16:25.953", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04", "tags": ["Third Party Advisory", "VDB Entry"], "source": "ics-cert@hq.dhs.gov"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-119"}]}], "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."}], "lastModified": "2026-03-05T21:38:07.330", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:portwell:engineering_toolkits:4.8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21B2CD9E-A22D-4482-9961-FA4A536689C2"}], "operator": "OR"}]}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}