CVE-2025-6916
TOTOLINK T6 formLoginAuth.htm Form_Login missing authentication
- Published
- Jun 30, 2025
- Updated
- Jun 30, 2025
- Assigning CNA
- VulDB
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 4.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:XLow · next 30 days
- Percentile
- 56.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. This affects the function Form_Login of the file /formLoginAuth.htm. The manipulation of the argument authCode/goURL leads to missing authentication. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used.
Sources
1- IoT_vulnPoC
Proof-of-concept exploits for IoT device vulnerabilities, including TOTOLINK login bypass CVEs, with detailed technical analysis and reproduction steps.
Responsible use
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