CVE-2025-46035 Denial of service in n/a

High 7.5 Published Updated

A remote unauthenticated attacker can cause a denial of service on Tenda AC6 routers by sending oversized parameters in an HTTP GET request.

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-2025-46035?

CVE-2025-46035 is a high-severity denial of service vulnerability in Tenda Ac6 Firmware, published on 12 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer Overflow vulnerability in Tenda AC6 v.15.03.05.16 allows a remote attacker to cause a denial of service via the oversized schedStartTime and schedEndTime parameters in an unauthenticated HTTP GET request to the /goform/openSchedWifi endpoint

Weakness: CWE-120

Which versions are affected by CVE-2025-46035?

It affects 1 product.

Products include Tenda Ac6 Firmware.

How do I fix CVE-2025-46035?

No fix has been published for CVE-2025-46035 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-46035 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-46035 exists.

All Tenda Ac6 Firmware vulnerabilities

Sources

Also known as GHSA-qq3w-wq6v-mgpw.

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