CVE-2026-103672
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
ProductPEAK-System Device Driver Setup
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-129CWE-129
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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