CVE-2025-7758 HIGH

CVE-2025-7758: TOTOLINK T6 HTTP POST Request cstecgi.cgi setDiagnosisCfg buffer overflow

Vendor Totolink
Product T6
Weakness CWE-120
Published July 17, 2025
Last update July 18, 2025
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015. Affected by this issue is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Key dates

02Disclosure timeline

July 17, 2025 CVE published
July 18, 2025 Record updated