CVE-2026-103672
Received
Received - Intake
PCAN Parser Stack-Based Buffer Overflow Due to Unchecked DLC
Vulnerability report for CVE-2026-103672, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-20
Last updated on: 2026-10-20
Assigner: ICS-CERT
Description
Description
The PEAK-System PCAN parser indexes a length table using attacker-controlled DLC without enforcing DLC <= 0x0f, then copies attacker payload from record+0x1c into a fixed-size stack destination.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| HMS | Networks | PEAK-System Device Driver Setup 0 |
| HMS | Networks | PCAN Windows CAN device drivers 0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-129 | The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. |
