PatchTheCVECVE-2026-5338: A security vulnerability has been detected in Tenda G103 1.0.0.5
CVE-2026-5338 is a medium-severity flaw (CVSS 4.7) affecting g103 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A security vulnerability has been detected in Tenda G103 1.0.0.5. The affected element is the function action_set_system_settings of the file system.lua of the component Setting Handler. Such manipulation of the argument lanIp leads to command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
Why this priority
- EPSS top 8%: very likely to be exploited
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-5338?
g103 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-5338 being exploited?
CVE-2026-5338 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-5338 affect?
CVE-2026-5338 affects g103 firmware. Severity is medium (CVSS 4.7). A security vulnerability has been detected in Tenda G103 1.0.0.5. The affected element is the function action_set_system_settings of the file system.lua of the component Setting Handler. Such manipulation of the argument lanIp leads to comm
How urgent is CVE-2026-5338?
Priority 44/100. EPSS top 8%: very likely to be exploited; Public exploit reference