Vulnerability 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.
CVSS Score
7.1
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Related Weaknesses (CWE)
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-29
- 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/
FAQ
What is CVE-2026-103672?
CVE-2026-103672 is a vulnerability with a CVSS score of 7.1 (HIGH). 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.
How severe is CVE-2026-103672?
CVE-2026-103672 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-103672?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.