What’s Vulnerable › Vulnerabilities

CVE-2026-5975: Totolink A7100RU CGI cstecgi.cgi setDmzCfg 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: 2026-04-09 · updated 2026-10-26
• Weakness: CWE-77

Description

A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wanIdx leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used.

Affected products

• Totolink A7100RU: 7.4cu.2313_b20191024

References

• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_161/README.md
• https://vuldb.com/submit/791821
• https://vuldb.com/vuln/356529
• https://vuldb.com/vuln/356529/cti
• https://www.totolink.net/

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