CVE-2017-7909: Advantech B+b Smartworx MESR901 Firmware

Critical severity, CVSS 9.8. EPSS: 2.6% chance of exploitation in the next 30 days.

A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.

Affected products

• Advantech B+b Smartworx MESR901 Firmware: up to and including 1.5.2

Published 2017-05-06. Last modified 2026-06-17.