What’s Vulnerable › Vulnerabilities

CVE-2026-7140: Totolink A8000RU CGI cstecgi.cgi CsteSystem 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: 2026-04-27 · updated 2026-10-26
• Weakness: CWE-77

Description

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument HTTP leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink A8000RU: 7.1cu.643_b20200521

References

• https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_315/README.md
• https://vuldb.com/submit/801110
• https://vuldb.com/vuln/359739
• https://vuldb.com/vuln/359739/cti
• https://www.totolink.net/

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