CVE-2026-6131: Totolink A7100RU CGI cstecgi.cgi setTracerouteCfg os command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-12 · updated 2026-10-26
Weakness: CWE-77

Description

A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument command results in os command injection. The attack may be launched remotely. The exploit has been made public and could be used.

Affected products

Totolink A7100RU: 7.4cu.2313_b20191024

References

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_182/README.md
https://vuldb.com/submit/792251
https://vuldb.com/vuln/356995
https://vuldb.com/vuln/356995/cti
https://www.totolink.net/

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