CVE-2021-22448 Path traversal in EMUI

Critical 9.1 Published 25 Feb 2022 Updated 3 Aug 2024

Attackers can exploit improper verification to unauthorizedly read and write files on Huawei smartphones running EMUI or Magic UI.

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-2021-22448?

CVE-2021-22448 is a critical path traversal vulnerability in Huawei Emui, published on 25 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is an improper verification vulnerability in smartphones. Successful exploitation of this vulnerability may cause unauthorized read and write of some files.

Which versions are affected by CVE-2021-22448?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-22448?

No fix has been published for CVE-2021-22448 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-22448 being exploited?

There is no known exploitation of CVE-2021-22448 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-4677-mm85-px6j.