QwikSec

Security Database

CVE

CWE

Training

CVE-2026-5993

Published: Apr 10, 2026

Modified: Apr 14, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
Totolink	A7100RU	affected `7.4cu.2313_b20191024`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-356547 | Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection

vdb-entry

technical-description

VDB-356547 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #792041 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection

third-party-advisory

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

exploit

https://www.totolink.net/

product

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.