Vulnerability Description
The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2026-101103?
CVE-2026-101103 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.
How severe is CVE-2026-101103?
CVE-2026-101103 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-101103?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.