CVE-2017-16934: Dbltek Web Server

Critical severity, CVSS 9.8. EPSS: 13.5% chance of exploitation in the next 30 days.

The web server on DBL DBLTek devices allows remote attackers to execute arbitrary OS commands by obtaining the admin password via a frame.html?content=/dev/mtdblock/5 request, and then using this password for the HTTP Basic Authentication needed for a change_password.csp request, which supports a "<%%25call system.exec:" string in the passwd parameter.

Affected products

• Dbltek Web Server: affected versions not specified

Published 2017-11-24. Last modified 2026-06-17.