Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection_CVE-2026-7156

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 was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

Basic Information

ID CVE-2026-7156

Source VulDB

Published Apr 27, 2026 at 20:30

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": "2026-04-27T20:30:20.851Z",
    "modified": "2026-04-27T20:30:20.851Z",
    "type": "cve",
    "title": "Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/359755\nhttps://vuldb.com/vuln/359755/cti\nhttps://vuldb.com/submit/801142\nhttps://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_320/README.md\nhttps://www.totolink.net/",
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