CVE-2025-7862

TOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authentication

CVSS 6.9 MEDIUMEPSS 1.0%CWE-287 CWE-306

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

20 Jul 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

TOTOLINK · T6

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References

https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md#poc-http https://vuldb.com/?ctiid.316975 https://vuldb.com/?id.316975 https://vuldb.com/?submit.617643 https://www.totolink.net/https://www.youtube.com/watch?v=XeKu3tfeSME