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CVE-2026-3437

8.8 · HIGH

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…

Published Mar 3, 2026CWE-119EPSS 0.18%

Overview

CVE-2026-3437 is a high-severity vulnerability. It was published on March 3, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-04.jsonRefsoftware.portwell.tw/security-advisory/PWS-2026-3437.htmlCISAwww.cisa.gov/news-events/ics-advisories/icsa-26-062-04

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3437?

CVE-2026-3437 is a high-severity vulnerability. It was published on March 3, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-3437?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-3437?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-3437?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3437 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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