CVE-2021-37040 Command injection in EMUI

Critical 9.8 Published 8 Dec 2021 Updated 4 Aug 2024

Attackers can escalate privileges via parameter injection during CIFS share mounting on Huawei mobile devices.

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-2021-37040?

CVE-2021-37040 is a critical command injection vulnerability in Huawei Emui, published on 8 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a Parameter injection vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may cause privilege escalation of files after CIFS share mounting.

Weakness: CWE-88

Which versions are affected by CVE-2021-37040?

It affects 3 products.

Products include Huawei Emui, Huawei Harmonyos, Huawei Magic Ui.

How do I fix CVE-2021-37040?

No fix has been published for CVE-2021-37040 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-2021-37040 being exploited?

There is no known exploitation of CVE-2021-37040 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-xpw4-2478-wj8x.