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I. Basic Information for CVE-2026-7156
Vulnerability Information
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Vulnerability Title
Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
TotolinkA8000RU 7.1cu.643_b20200521 cpe:2.3:o:totolink:a8000ru_firmware:*:*:*:*:*:*:*:*
II. Public POCs for CVE-2026-7156
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8346 chars
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III. Intelligence Information for CVE-2026-7156
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IV. Related Vulnerabilities
Same product: A8000RU
Same vendor: Totolink
Same weakness: CWE-78
V. Comments for CVE-2026-7156

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