CVE-2026-3437
Improper Restriction of Operations within the Bounds of a Memory Buffer in Portwell Engineering Toolkits
CVSS Score
8.8
EPSS Score
0.2%
EPSS Percentile
5th
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.
| CWE | CWE-119 |
| Vendor | portwell |
| Product | portwell engineering toolkits |
| Published | Mar 3, 2026 |
| Last Updated | Jun 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for portwell portwell engineering toolkits
Be the first to know when new high vulnerabilities affecting portwell portwell engineering toolkits are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Portwell / Portwell Engineering Toolkits
0 ≤ 4.8.2
References
Credits
Jason Huang from Cyber Threat & Product Defense Center of TXOne Networks Inc.