CVE-2021-22402 Denial of service in EMUI

What is CVE-2021-22402?

CVE-2021-22402 is a high-severity denial of service vulnerability in Huawei Emui, published on 28 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a DoS vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may cause DoS attacks.

Which versions are affected by CVE-2021-22402?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-22402?

No fix has been published for CVE-2021-22402 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-2021-22402 being exploited?

There is no known exploitation of CVE-2021-22402 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-f6cq-5f22-xcw9.