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CVE-2026-3437

CRITICAL CVSS 4.0: 9.3 EPSS 0.02%
Updated Mar 03, 2026
An Improper
Parameter Value
CVSS 9.3 (CRITICAL)
Type CWE-119 (Buffer Overflow)
Vendor An Improper
Public PoC No

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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)