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Medium · 5.5 CVE-2026-101103 EUVD-2026-105316GHSA-cw79-5c2h-gpr4

HMS Networks PEAK-System PCAN Windows drivers Classic Buffer Overflow

Published Oct 20, 2026 · Updated Oct 29, 2026 · Assigned by icscert

Vendor: HMS Networks Product: PCAN Windows CAN device drivers Product: PEAK-System Device Driver Setup Platform: Windows

Description

The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.

Affected products

VendorProductAffectedFixed
HMS Networks PEAK-System Device Driver Setup ≤ 5.1.2.1151 5.1.4
HMS Networks PCAN Windows CAN device drivers ≤ 5.1.2 5.1.4

Advisories 1

References