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CVE-2026-9454— Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCertGenerationCfg os command injection

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-9454

Vulnerability Information
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Vulnerability Title
Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCertGenerationCfg os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setOpenVpnCertGenerationCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument servername can lead to os command injection. The attack may be launched remotely. The exploit has been published 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-2026-9454

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III. Intelligence Information for CVE-2026-9454

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Other References for CVE-2026-9454 (3)

Same Patch Batch · Totolink · 2026-05-25 · 11 CVEs total

CVE-2026-94589.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setWanCfg os command injection
CVE-2026-94579.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi UploadFirmwareFile os command injection
CVE-2026-94569.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setOpenVpnCfg os command injection
CVE-2026-94559.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi UploadOpenVpnCert os command injection
CVE-2026-94369.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection
CVE-2026-94359.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setQosCfg os command injection
CVE-2026-94349.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setWiFiWpsCfg os command injection
CVE-2026-94339.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setMacFilterRules os command injection
CVE-2026-94329.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setWiFiAdvancedCfg os command injection
CVE-2026-94089.8 CRITICALTotolink A8000RU Web Management cstecgi.cgi setStaticDhcpRules os command injection

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-9454

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