CVE-2025-14964 CRITICAL

CVE-2025-14964: TOTOLINK T10 cstecgi.cgi sprintf stack-based overflow

Vendor Totolink
Product T10
Weakness CWE-121
Published December 19, 2025
Last update February 24, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

A vulnerability has been found in TOTOLINK T10 4.1.8cu.5083_B20200521. This affects the function sprintf of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument loginAuthUrl leads to stack-based buffer overflow. The attack may be performed from remote.

Key dates

02Disclosure timeline

December 19, 2025 CVE published
February 24, 2026 Record updated