CVE-2026-5993

CRITICAL

Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection

Title source: cna

Description

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.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/356547

[Signature, Permissions Required] https://vuldb.com/vuln/356547/cti

[Third Party Advisory] https://vuldb.com/submit/792041

[Exploit] https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_165/README.md

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

Scores

CVSS v3 9.8

EPSS 0.0125

EPSS Percentile 79.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A7100RU 7.4cu.2313_b20191024

Published Apr 10, 2026

Tracked Since Apr 10, 2026