CVE-2026-6029: OS Command Injection in Totolink A7100RU
A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument User results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.
AI Analysis
Technical Summary
This vulnerability in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows remote attackers to perform OS command injection via the User parameter in the setVpnAccountCfg function of the /cgi-bin/cstecgi.cgi component. The flaw resides in the CGI handler, enabling unauthenticated remote code execution. The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Exploit code is publicly available, but no official patch or mitigation is currently documented.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device without authentication, potentially leading to full system compromise. This can result in loss of confidentiality, integrity, and availability of the device and its network environment. Given the critical CVSS score and public exploit availability, the risk to affected devices is high.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, users should monitor Totolink communications for firmware updates addressing this issue. Until a patch is available, restricting network access to the device's management interface and disabling remote management features may reduce exposure.
CVE-2026-6029: OS Command Injection in Totolink A7100RU
Description
A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument User results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows remote attackers to perform OS command injection via the User parameter in the setVpnAccountCfg function of the /cgi-bin/cstecgi.cgi component. The flaw resides in the CGI handler, enabling unauthenticated remote code execution. The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Exploit code is publicly available, but no official patch or mitigation is currently documented.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device without authentication, potentially leading to full system compromise. This can result in loss of confidentiality, integrity, and availability of the device and its network environment. Given the critical CVSS score and public exploit availability, the risk to affected devices is high.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, users should monitor Totolink communications for firmware updates addressing this issue. Until a patch is available, restricting network access to the device's management interface and disabling remote management features may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-09T15:55:29.603Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d8a14c1cc7ad14da9459e8
Added to database: 4/10/2026, 7:05:48 AM
Last enriched: 4/17/2026, 12:22:40 PM
Last updated: 5/25/2026, 12:08:30 PM
Views: 85
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.