What’s Vulnerable › Vulnerabilities
CVE-2026-3437: Improper Restriction of Operations within the Bounds of a Memory Buffer in Portwell Engineering Toolkits
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-03 · updated 2026-06-25
- Weakness: CWE-119
Description
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.
Affected products
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-04.json
- https://software.portwell.tw/security-advisory/PWS-2026-3437.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-04
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