All vulnerabilities
CVE-2026-103672

HMS Networks PEAK-System PCAN Windows drivers Improper Validation of Array Index

HMS Networks PEAK-System Device Driver Setup
Open in ThreatlineRecord JSON
CVSS
7.1High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.13%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published20 Oct 2026Updated 20 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 4

  • PEAK-System Device Driver Setupaffected: all versions through 5.1.2.1151CVE List
  • PEAK-System Device Driver Setupunaffected: 5.1.4CVE List
  • PCAN Windows CAN device driversaffected: all versions through 5.1.2CVE List
  • PCAN Windows CAN device driversunaffected: 5.1.4CVE List

References 4