CVE-2026-5339 MEDIUM

CVE-2026-5339: Tenda G103 Setting gpon.lua action_set_net_settings command injection

Vendor Tenda
Product G103
Weakness CWE-77
Published April 2, 2026
Last update April 2, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was detected in Tenda G103 1.0.0.5. The impacted element is the function action_set_net_settings of the file gpon.lua of the component Setting Handler. Performing a manipulation of the argument authLoid/authLoidPassword/authPassword/authSerialNo/authType/oltType/usVlanId/usVlanPriority results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

Key dates

02Disclosure timeline

April 2, 2026 CVE published
April 2, 2026 Record updated