QwikSec

Security Database

CVE

CWE

Training

CVE-2026-5103

Published: Mar 30, 2026

Modified: Mar 30, 2026

PUBLISHED

CVSS v3.1

6.3

MEDIUM

Description

A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Vendor	Product	Versions
Totolink	A3300R	affected `17.0.0cu.557_b20221024`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-354128 | Totolink A3300R cstecgi.cgi setUPnPCfg command injection

vdb-entry

technical-description

VDB-354128 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #779140 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection

third-party-advisory

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject

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.