CVE-2026-7717 HIGH

CVE-2026-7717: Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow

Vendor Totolink
Product WA300
Weakness CWE-120
Published May 4, 2026
Last update May 4, 2026
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 was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Key dates

02Disclosure timeline

May 4, 2026 CVE published
May 4, 2026 Record updated