CVE-2026-1690 Tenda HG10 formSysCmd system command injection

Medium 5.1 Published Updated

Remote attackers can execute arbitrary system commands on Tenda HG10 routers via the formSysCmd interface, potentially compromising the device.

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

What is CVE-2026-1690?

CVE-2026-1690 is a medium-severity command injection vulnerability in Tenda HG10, published on 30 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A flaw has been found in Tenda HG10 US_HG7_HG9_HG10re_300001138_en_xpon. This affects the function system of the file /boaform/formSysCmd. This manipulation of the argument sysCmd causes command injection. The attack may be initiated remotely. The exploit has been published and may be used.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-1690?

It affects 1 product.

Products include Tenda Hg10 Firmware.

How do I fix CVE-2026-1690?

No fix has been published for CVE-2026-1690 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-2026-1690 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1690 exists.

Sources

Also known as GHSA-p57v-jgcx-wq3m.

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