PT-2026-22767 · Portwell · Portwell Engineering Toolkits

Jason Huang · CVE-2026-3437 · Published 2026-03-03 · Updated 2026-06-25

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Portwell Engineering Toolkits version 4.8.2

Description An improper restriction of operations within the bounds of a memory buffer in the Portwell Engineering Toolkits driver allows a local authenticated attacker to read and write to arbitrary memory. This could lead to a denial-of-service condition or escalation of privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-3437

Affected Products

Portwell Engineering Toolkits

References · 10

• https://osv.dev/vulnerability/CVE-2026-3437 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3437 · Security Note
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-04.json · Note
• https://t.me/cveNotify/175633 · Telegram Post
• https://twitter.com/infoflowcloud/status/2028902109245006159 · Twitter Post
• https://t.me/CVEtracker/46238 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2028916548224553018 · Twitter Post
• https://twitter.com/CVEnew/status/2028900642668814773 · Twitter Post
• https://software.portwell.tw/security-advisory/PWS-2026-3437.html · Patch, Vendor Advisory
• https://cisa.gov/news-events/ics-advisories/icsa-26-062-04 · Note