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Vulnerability · Published Apr 2, 2026 · Assigned by VulDB

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

Medium 4.7

In plain English

A medium-severity command injection in G103 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 6.5% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)6.5%top 6.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Tenda G103 1.0.0.5

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References