CVE-2026-5691

A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setFirewallType of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument firewallType leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

• CWE-77
• CWE-78

• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_189/README.md
• https://vuldb.com/submit/792962
• https://vuldb.com/vuln/355518
• https://vuldb.com/vuln/355518/cti
• https://www.totolink.net/

Published

Apr 6, 2026

Last Modified

Jul 24, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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