CVE-2021-40054 Integer overflow in EMUI

What is CVE-2021-40054?

CVE-2021-40054 is a high-severity vulnerability in Huawei Emui, published on 7 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.

Weakness: CWE-191

Which versions are affected by CVE-2021-40054?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-40054?

No fix has been published for CVE-2021-40054 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-40054 being exploited?

There is no known exploitation of CVE-2021-40054 in the wild and no public exploit code.

Other vulnerabilities in Huawei Emui

• CVE-2023-52370 Memory corruption in EMUI Critical 9.8
• CVE-2023-52378 Business logic in EMUI Critical 9.8
• CVE-2023-52381 Code injection in EMUI Critical 9.8
• CVE-2023-52103 Memory corruption in EMUI Critical 9.8
• CVE-2023-46773 Privilege escalation in EMUI Critical 9.8

All Huawei Emui vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-45cf-q4mp-fgvx.