CVE-2026-6139 | Totolink A7100RU 7.4cu.2313_b20191024 CGI /cgi-bin/cstecgi.cgi UploadOpenVpnCert FileName os command injection

A vulnerability, which was classified as critical, was found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument FileName leads to os command injection.

This vulnerability is uniquely identified as CVE-2026-6139. The attack can be launched remotely. Moreover, an exploit is present.