CVE-2025-7862
TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 20, 2025
- Updated
- Jul 22, 2025
- Reserved
- Jul 19, 2025
Description
A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument telnet_enabled with the input 1 leads to missing authentication. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:W/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
T6TOTOLINK |
|
References
- VDB-316975 | TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authenticationvdb-entrytechnical-description
- VDB-316975 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #617643 | TOTOLINK T6 V4.1.5cu.748_B20211015 Missing Authenticationthird-party-advisory
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.mdrelated
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md#poc-httpexploit
- https://www.youtube.com/watch?v=XeKu3tfeSMEmedia-coverage
- https://www.totolink.net/product
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