CVE-2026-19846 | TOTOLINK A800R 4.1.2cu.5137_B20200730 firewall.so /cgi-bin/cstecgi.cgi setUrlFilterRules url stack-based overflow

August 14, 2026 Yanac

A vulnerability marked as critical has been reported in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. The manipulation of the argument url leads to stack-based buffer overflow.

This vulnerability is documented as CVE-2026-19846. The attack can be initiated remotely. Additionally, an exploit exists.VulDB Recent EntriesRead More