CVE-2026-109576
Medium
Description
The parser in PEAK-System PCAN driver correctly detected the malformed record, but the loop iterating the record list advanced its processed-bytes counter even when a record had been rejected as invalid.
SeverityMedium
CVSS5.5
Exploit probability—
ProductPEAK-System Device Driver Setup
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HMS Networks PEAK-System Device Driver Setup | v ≤ 5.1.2.1151 | — |
| HMS Networks PCAN Windows CAN device drivers | v ≤ 5.1.2 | — |
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