CVE-2026-5339

2.0 lowEPSS 6.5%

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.

Severity

CVSS 4.0

2.0 low

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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 6.5% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
CWEs: CWE-77, CWE-74
Published: 2026-04-02
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

Affected

tenda:g103_firmware

References

https://github.com/ZZ2266/.github.io/tree/main/Tenda%20G103/authLoid
https://vuldb.com/submit/781132
https://vuldb.com/submit/781133
https://vuldb.com/submit/781134
https://vuldb.com/submit/781135

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