Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection_CVE-2026-7140

9.3 / 10

CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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.

Basic Information

ID CVE-2026-7140

Source VulDB

Published Apr 27, 2026 at 16:30

Affected Product

Vendor Totolink

Product A8000RU

Version 7.1cu.643_b20200521

Affected Versions Totolink A8000RU 7.1cu.643_b20200521

CWE Classification

CWE-78 CWE-77

References

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    "published": "2026-04-27T16:30:12.659Z",
    "modified": "2026-04-27T16:30:12.659Z",
    "type": "cve",
    "title": "Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/359739\nhttps://vuldb.com/vuln/359739/cti\nhttps://vuldb.com/submit/801110\nhttps://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_315/README.md\nhttps://www.totolink.net/",
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