CVE-2025-7862
Last modified
CVE-2025-7862 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.99% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Totolink | T6 Firmware | v4.1.5cu.748_b20211015 |
References
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.mdExploit, Third Party Advisory
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md#poc-httpExploit, Third Party Advisory
- https://vuldb.com/?ctiid.316975Permissions Required
- https://vuldb.com/?id.316975Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.617643Third Party Advisory, VDB Entry
- https://www.totolink.net/Product
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.mdExploit, Third Party Advisory
- https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/5.md#poc-httpExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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