CVE-2025-63223: Axeltechnology Streamermax Mk Ii Firmware

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The Axel Technology StreamerMAX MK II devices (firmware versions 0.8.5 to 1.0.3) are vulnerable to Broken Access Control due to missing authentication on the /cgi-bin/gstFcgi.fcgi endpoint. Unauthenticated remote attackers can list user accounts, create new administrative users, delete users, and modify system settings, leading to full compromise of the device.

Affected products

• Axeltechnology Streamermax Mk Ii Firmware: from 0.8.5, up to and including 1.0.3

Published 2025-11-19. Last modified 2026-06-17.