CVE-2026-101103Medium· 5.5▾ SunlitThe PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.
peak-system_device_driver_setup <= 5.1.2.1151pcan_windows_can_device_drivers <= 5.1.2HMS Networks AB has addressed the issue in version 5.1.4 and recommends that users upgrade to the newest available version. Users can find software updates for PEAK-System PCAN on the software download page https://www.peak-system.com/support/downloads/software/ .
For more information see the associated HMS security advisory https://www.hms-networks.com/cybersecurity .
Connected by shared product, vendor, weakness, or advisory.
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