CVE-2026-51645 - Incorrect access control in the getPasswordCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain the administrative username via sending a crafted POST request to /cgi-bin/cstecgi.cgi

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CRITICAL

Incorrect access control in the getPasswordCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain the administrative username via sending a crafted POST request to /cgi-bin/cstecgi.cgi

Published Aug 28, 2026

9.8

CRITICAL

CVSS 3.1

EPSS 0.64%

Description

Incorrect access control in the getPasswordCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain the administrative username via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-284

References (5)

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-67921		Advisory
https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
https://www.totolink.net/
https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html