CVE-2026-5688: Totolink a7100ru

High severity, CVSS 7.3. EPSS: 2.1% chance of exploitation in the next 30 days.

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

Affected products

• Totolink a7100ru: version 7.4cu.2313_b20191024 only

Published 2026-04-06. Last modified 2026-07-24.