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CVE-2026-5105

Published: Mar 30, 2026

Modified: Mar 30, 2026

PUBLISHED

CVSS v3.1

6.3

MEDIUM

Description

A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

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-354130 | Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection

vdb-entry

technical-description

VDB-354130 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #779143 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection

third-party-advisory

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_pptpPassThru_cmd_inject

exploit

https://www.totolink.net/

product

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