CVE-2026-109576

Medium6.8

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.

CVSS: 6.8v4.0
EPSS (exploit probability): Unavailable
CISA KEV: Not listed

EPSS trendFIRST daily scores, last 90 days

Unavailable

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Coverage1 article

HMS Networks PEAK-System PCAN Windows drivers

CISA Advisories20h agoEndpointVulnerabilitiesCVE-2026-101103 CVE-2026-103672+4

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-293-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-293-01
https://www.hms-networks.com/cybersecurity
https://www.peak-system.com/support/downloads/software/