CVE-2026-5690: OS Command Injection in Totolink A7100RU
CVE-2026-5690 is a medium severity vulnerability in the Totolink A7100RU router firmware version 7. 4cu. 2313_b20191024. The issue exists in the setRemoteCfg function of the /cgi-bin/cstecgi. cgi file, where manipulation of the 'enable' argument can lead to OS command injection. This vulnerability can be exploited remotely without authentication. Although an exploit has been published, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
This vulnerability in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows remote attackers to perform OS command injection via the 'enable' argument in the setRemoteCfg function within /cgi-bin/cstecgi.cgi. The flaw permits execution of arbitrary OS commands remotely without requiring authentication, increasing the risk of unauthorized system control. The CVSS 4.0 base score is 6.9, reflecting medium severity with network attack vector, no privileges or user interaction needed, and partial impact on confidentiality, integrity, and availability. No official remediation or patch is currently documented.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device, potentially leading to unauthorized control or disruption. The vulnerability impacts confidentiality, integrity, and availability to a limited extent. No known active exploitation in the wild has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict remote access to the affected device, disable remote management features if possible, and monitor for unusual activity related to the vulnerable CGI endpoint.
CVE-2026-5690: OS Command Injection in Totolink A7100RU
Description
CVE-2026-5690 is a medium severity vulnerability in the Totolink A7100RU router firmware version 7. 4cu. 2313_b20191024. The issue exists in the setRemoteCfg function of the /cgi-bin/cstecgi. cgi file, where manipulation of the 'enable' argument can lead to OS command injection. This vulnerability can be exploited remotely without authentication. Although an exploit has been published, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided yet.
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 'enable' argument in the setRemoteCfg function within /cgi-bin/cstecgi.cgi. The flaw permits execution of arbitrary OS commands remotely without requiring authentication, increasing the risk of unauthorized system control. The CVSS 4.0 base score is 6.9, reflecting medium severity with network attack vector, no privileges or user interaction needed, and partial impact on confidentiality, integrity, and availability. No official remediation or patch is currently documented.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the affected device, potentially leading to unauthorized control or disruption. The vulnerability impacts confidentiality, integrity, and availability to a limited extent. No known active exploitation in the wild has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict remote access to the affected device, disable remote management features if possible, and monitor for unusual activity related to the vulnerable CGI endpoint.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-06T10:27:02.415Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d43b0e0a160ebd92e61f94
Added to database: 4/6/2026, 11:00:30 PM
Last enriched: 4/6/2026, 11:15:27 PM
Last updated: 4/7/2026, 1:24:11 AM
Views: 5
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