CVE-2026-38835 Command injection in n/a

Critical 9.8 Published 21 Apr 2026 Updated 22 Apr 2026

Attackers can execute arbitrary commands on Tenda W30E routers via a crafted request to the USB partition unmount function.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-38835?

CVE-2026-38835 is a critical command injection vulnerability in Tenda W30e Firmware, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda W30E V2.0 V16.01.0.21 was found to contain a command injection vulnerability in the formSetUSBPartitionUmount function via the usbPartitionName parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Weakness: CWE-77

Which versions are affected by CVE-2026-38835?

It affects 1 product.

Products include Tenda W30e Firmware.

How do I fix CVE-2026-38835?

No fix has been published for CVE-2026-38835 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-38835 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38835 exists.

All Tenda W30e Firmware vulnerabilities

Sources

Also known as GHSA-656r-ggpg-wmqm.