What’s Vulnerable › Vulnerabilities

CVE-2026-6156: Totolink A7100RU CGI cstecgi.cgi setIpQosRules 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: 2026-04-13 · updated 2026-10-26
• Weakness: CWE-77

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument Comment leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Affected products

• Totolink A7100RU: 7.4cu.2313_b20191024

References

• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_197/README.md
• https://vuldb.com/submit/793681
• https://vuldb.com/vuln/357036
• https://vuldb.com/vuln/357036/cti
• https://www.totolink.net/

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