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CVE-2026-5339

4.7 · MEDIUM

A vulnerability was detected in Tenda G103 1.0.0.5.

Published Apr 2, 2026CWE-74EPSS 10.21%

Overview

CVE-2026-5339 is a medium-severity vulnerability. It was published on April 2, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ZZ2266/.github.io/tree/main/Tenda%20G103/authLoidRefvuldb.com/submit/781132Refvuldb.com/submit/781133Refvuldb.com/submit/781134Refvuldb.com/submit/781135Refvuldb.com/submit/781142Refvuldb.com/submit/781143Refvuldb.com/submit/781144Refvuldb.com/submit/781145Refvuldb.com/vuln/354670

How CyberStrike helps

Frequently asked questions

What is CVE-2026-5339?

CVE-2026-5339 is a medium-severity vulnerability. It was published on April 2, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2026-5339?

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-5339?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-5339?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-5339 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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