CVE-2017-8862: Cohuhd 3960hd Firmware

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process, allowing an attacker to upload a specially crafted postinstall.sh file that will be executed with "root" privileges.

Affected products

• Cohuhd 3960hd Firmware: affected versions not specified

Published 2017-11-22. Last modified 2026-06-17.