SECURELYN

CVE-2026-5339

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.

Scores

2.0
CVSS 2.0 out of 10, low severity.
10.2%
EPSS 10.2% chance of exploitation in the next 30 days.

The facts

Published
2 April 2026
Last changed
24 July 2026
NVD status
Analyzed
Severity
Low, CVSS 2.0 out of 10 (version 4.0)
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R…
Weakness
Affects
  • tenda g103 firmware
Known exploited
Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
EPSS
10.2% chance of exploitation activity in the next 30 days (percentile 96).

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References