CVE-2026-9476: OS Command Injection in Totolink A8000RU
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used.
AI Analysis
Technical Summary
This vulnerability affects the Totolink A8000RU router firmware version 7.1cu.643_b20200521. It arises from improper input handling in the setPasswordCfg function within the /cgi-bin/cstecgi.cgi web management interface, specifically through the 'admpass' parameter. This flaw enables unauthenticated remote attackers to perform OS command injection, potentially leading to full system compromise. The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or remediation level has been documented, and the vendor has not released an advisory or fix as of the published date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device without authentication, potentially leading to full compromise of the router. This can result in unauthorized control over the device, data exposure, and disruption of network services. The high CVSS score reflects the critical nature of this vulnerability and its potential impact on device security and network integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, it is recommended to restrict access to the web management interface to trusted networks only and monitor for any suspicious activity. Avoid exposing the device management interface to untrusted networks or the internet. Follow up with Totolink for any forthcoming security updates or patches addressing this vulnerability.
CVE-2026-9476: OS Command Injection in Totolink A8000RU
Description
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used.
CVSS v4.0
Score 9.3critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Totolink A8000RU router firmware version 7.1cu.643_b20200521. It arises from improper input handling in the setPasswordCfg function within the /cgi-bin/cstecgi.cgi web management interface, specifically through the 'admpass' parameter. This flaw enables unauthenticated remote attackers to perform OS command injection, potentially leading to full system compromise. The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or remediation level has been documented, and the vendor has not released an advisory or fix as of the published date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device without authentication, potentially leading to full compromise of the router. This can result in unauthorized control over the device, data exposure, and disruption of network services. The high CVSS score reflects the critical nature of this vulnerability and its potential impact on device security and network integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, it is recommended to restrict access to the web management interface to trusted networks only and monitor for any suspicious activity. Avoid exposing the device management interface to untrusted networks or the internet. Follow up with Totolink for any forthcoming security updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-24T09:15:32.636Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1485eca5ae1af1aacc71ca
Added to database: 05/25/2026, 17:25:00 UTC
Last enriched: 06/01/2026, 20:23:28 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 81
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