CVE-2026-5339CWE-74CWE-77

Tenda G103 Setting gpon.lua action_set_net_settings command injection

Medium · published April 2, 2026

CVSS v4.0

5.1

EPSS

10%

Percentile

95.7

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v4.0: 5.1 · MEDIUM
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
EPSS: 0.10206 · 95.7th percentile
Weaknesses: CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published: 2026-04-02T14:15Z

EPSS history

Timeline

02 APR 14:15Z
Tenda G103 Setting gpon.lua action_set_net_settings command injection
cvelistv5