CVE-2020-21406 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a denial of service on RK Smart TV Box MAX and V88 devices via the switchNextDisplayInterface service.

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-2020-21406?

CVE-2020-21406 is a high-severity denial of service vulnerability in n/a, published on 20 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in RK Smart TV Box MAX and V88 SmartTV box that allows attackers to cause a denial of service via the switchNextDisplayInterface service.

Which versions are affected by CVE-2020-21406?

It affects 2 products.

Products include Rk Max Smart Tv Box Project Rk Max Smart Tv Box Firmware, V88 Smart Tv Box Project V88 Smart Tv Box Firmware.

How do I fix CVE-2020-21406?

No fix has been published for CVE-2020-21406 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-2020-21406 being exploited?

There is no known exploitation of CVE-2020-21406 in the wild and no public exploit code.

Sources

Also known as GHSA-vjp2-9hqr-v334.

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