Portwell Engineering Toolkits 4.8.2 Driver memory corruption
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.6 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Portwell Engineering Toolkits 4.8.2. It has been declared as critical. This affects an unknown part of the component Driver. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2026-3437. The attack is restricted to local execution. No exploit exists.
Details
A vulnerability has been found in Portwell Engineering Toolkits 4.8.2 and classified as critical. This vulnerability affects some unknown processing of the component Driver. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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.
The weakness was disclosed by Jason Huang as icsa-26-062-04. The advisory is shared for download at cisa.gov. This vulnerability was named CVE-2026-3437 since 03/02/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/06/2026).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.6
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
03/02/2026 CVE reserved03/03/2026 Advisory disclosed
03/03/2026 VulDB entry created
03/06/2026 VulDB entry last update
Sources
Advisory: icsa-26-062-04Researcher: Jason Huang
Status: Not defined
CVE: CVE-2026-3437 (🔒)
GCVE (CVE): GCVE-0-2026-3437
GCVE (VulDB): GCVE-100-348592
Entry
Created: 03/03/2026 20:10Updated: 03/06/2026 12:03
Changes: 03/03/2026 20:10 (67), 03/06/2026 03:19 (10), 03/06/2026 12:03 (1)
Complete: 🔍
Cache ID: 216::103
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