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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:859610f04a9b6c04cb8f18c5cf9ef09a9dcb9b999a5ff51e8776c658207cd940
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Portwell Engineering Toolkits","vendor":"Portwell","versions":[{"lessThanOrEqual":"4.8.2","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"v5.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-119","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-04.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/references/2
{"tags":["vendor-advisory","patch"],"url":"https://software.portwell.tw/security-advisory/PWS-2026-3437.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/references/0
{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4447956735e43ddb561497a3facf6b44b2f945e39aad903a75182ce2363aae66 · sha256:26200f3890992a27… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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