CVE-2026-103672 PEAK-System PCAN - Buffer Overflow

PEAK-System PCAN parser contains a buffer overflow caused by lack of DLC length validation, letting attackers execute arbitrary code via crafted payload, exploit requires attacker-controlled DLC input.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-129

Vendor fix

Update to the latest version with DLC length validation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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