What’s Vulnerable › Vulnerabilities

CVE-2026-7121: Totolink A8000RU CGI cstecgi.cgi setWizardCfg os command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-27 · updated 2026-10-25
• Weakness: CWE-77

Description

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument wizard causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

Affected products

• Totolink A8000RU: 7.1cu.643_b20200521

References

• https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_306/README.md
• https://vuldb.com/submit/800933
• https://vuldb.com/vuln/359720
• https://vuldb.com/vuln/359720/cti
• https://www.totolink.net/

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