CVE-2026-5993 CRITICAL

CVE-2026-5993: Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection

Vendor Totolink
Product A7100RU
Weakness CWE-78
Published April 10, 2026
Last update April 14, 2026
View on NVD All CVEs

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:P

What the vulnerability does

01Description

A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wifiOff leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

April 10, 2026 CVE published
April 14, 2026 Record updated