CVE-2026-5994
Totolink A7100RU CGI cstecgi.cgi setTelnetCfg os command injection
- State
- Published
- Severity
- 9.3 Critical
- Published
- Apr 10, 2026
- Updated
- Apr 10, 2026
- Reserved
- Apr 9, 2026
Description
A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. This issue affects the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument telnet_enabled results in os command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.8 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
A7100RUTotolink |
|
References
- VDB-356548 | Totolink A7100RU CGI cstecgi.cgi setTelnetCfg os command injectionvdb-entrytechnical-description
- VDB-356548 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #792042 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injectionthird-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_166/README.mdexploit
- https://www.totolink.net/product
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