CVE-2026-9543: OS Command Injection in Totolink N300RH
A vulnerability has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is 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 has been disclosed to the public and may be used.
AI Analysis
Technical Summary
This vulnerability affects the Totolink N300RH router firmware 6.1c.1353_B20190305. It is an OS command injection in the setPasswordCfg function of the /cgi-bin/cstecgi.cgi component of the web management interface. The issue arises from improper handling of the admpass argument, allowing remote attackers to inject and execute arbitrary operating system commands. The vulnerability requires no privileges or user interaction and has a CVSS 4.0 base score of 9.3, reflecting its critical severity. The vulnerability is publicly disclosed but lacks an official fix or patch as of the publication date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device without authentication, potentially leading to full compromise of the router. This can result in unauthorized control, data theft, or disruption of network services. The high CVSS score (9.3) reflects the critical nature and ease of exploitation. No known active exploitation has been reported yet.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is currently available, users should restrict access to the router's web management interface from untrusted networks and consider disabling remote management if possible. Monitor Totolink's official channels for updates or firmware patches addressing this vulnerability.
CVE-2026-9543: OS Command Injection in Totolink N300RH
Description
A vulnerability has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is 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 has been disclosed to the public and may be used.
CVSS v4.0
Score 9.3critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Totolink N300RH router firmware 6.1c.1353_B20190305. It is an OS command injection in the setPasswordCfg function of the /cgi-bin/cstecgi.cgi component of the web management interface. The issue arises from improper handling of the admpass argument, allowing remote attackers to inject and execute arbitrary operating system commands. The vulnerability requires no privileges or user interaction and has a CVSS 4.0 base score of 9.3, reflecting its critical severity. The vulnerability is publicly disclosed but lacks an official fix or patch as of the publication date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device without authentication, potentially leading to full compromise of the router. This can result in unauthorized control, data theft, or disruption of network services. The high CVSS score (9.3) reflects the critical nature and ease of exploitation. No known active exploitation has been reported yet.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is currently available, users should restrict access to the router's web management interface from untrusted networks and consider disabling remote management if possible. Monitor Totolink's official channels for updates or firmware patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-26T06:38:00.625Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a15a0f6891d628fdc365f1a
Added to database: 05/26/2026, 13:32:38 UTC
Last enriched: 05/26/2026, 13:47:06 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 105
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