CVE-2025-6916 | THREATINT

Description

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.

Es wurde eine kritische Schwachstelle in TOTOLINK T6 4.1.5cu.748_B20211015 gefunden. Betroffen hiervon ist die Funktion Form_Login der Datei /formLoginAuth.htm. Durch das Manipulieren des Arguments authCode/goURL mit unbekannten Daten kann eine missing authentication-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff im lokalen Netzwerk. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-06-29 | Published 2025-06-30 | Updated 2025-06-30 | Assigner VulDB

HIGH: 8.7CVSS: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

HIGH: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R

HIGH: 8.8CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R

8.3AV:A/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:W/RC:UR

Problem types

Missing Authentication

Improper Authentication

Product status

4.1.5cu.748_B20211015

affected

Timeline

2025-06-29:	Advisory disclosed
2025-06-29:	VulDB entry created
2025-06-29:	VulDB entry last update

Credits

c0nyy (VulDB User) reporter

References

vuldb.com/?id.314409 (VDB-314409 | TOTOLINK T6 formLoginAuth.htm Form_Login missing authentication) vdb-entry technical-description

vuldb.com/?ctiid.314409 (VDB-314409 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.605101 (Submit #605101 | TOTOLINK T6 V4.1.5cu.748_B20211015 Authorization Bypass Through User-Controlled Key) third-party-advisory

github.com/c0nyy/IoT_vuln/blob/main/TOTOLINK T6 Vuln.md exploit

www.totolink.net/ product

cve.org (CVE-2025-6916)

nvd.nist.gov (CVE-2025-6916)

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