CVE-2021-40016 Missing authorization in EMUI

Medium 6.5 Published Updated

Attackers can exploit improper permission controls in the Bluetooth module to access confidential data on Huawei devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-40016?

CVE-2021-40016 is a medium-severity missing authorization vulnerability in Huawei Emui, published on 11 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper permission control vulnerability in the Bluetooth module.Successful exploitation of this vulnerability will affect confidentiality.

Which versions are affected by CVE-2021-40016?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-40016?

No fix has been published for CVE-2021-40016 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-40016 being exploited?

There is no known exploitation of CVE-2021-40016 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-4p43-388j-ffhj.

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