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CVE-2026-9405— Totolink A8000RU Web Management cstecgi.cgi setGameSpeedCfg os command injection

CVSS 9.8 · Critical EPSS 0.89% · P76

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-9405

Vulnerability Information
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Vulnerability Title
Totolink A8000RU Web Management cstecgi.cgi setGameSpeedCfg os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setGameSpeedCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument enable results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
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-2026-9405

#POC DescriptionSource LinkShenlong Link
AI-Generated POCVerified env Premium
Qwen3.6-35B-A3B · 9660 chars
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III. Intelligence Information for CVE-2026-9405

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News Coverage for CVE-2026-9405 (1)

Same Patch Batch · Totolink · 2026-05-24 · 9 CVEs total

CVE-2026-94079.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setFirewallType os command injection
CVE-2026-94069.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setRemoteCfg os command injection
CVE-2026-94049.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setDdnsCfg os command injection
CVE-2026-93889.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setScheduleCfg os command injection
CVE-2026-93879.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setUpgradeFW os command injection
CVE-2026-93869.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setLanguageCfg os command injection
CVE-2026-93859.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setTracerouteCfg os command injection
CVE-2026-93849.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setDiagnosisCfg os command injection

IV. Related Vulnerabilities

Same product: A8000RU
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-9405

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