CVE-2026-123957 | TOTOLINK CA300-PoE 6.2c.884 /cgi-bin/cstecgi.cgi setIpQosRules ipStart buffer overflow

November 6, 2026 Yanac

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been rated as very critical. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow.

The identification of this vulnerability is CVE-2026-123957. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.VulDB Recent EntriesRead More