CVE-2021-22478 Use after free in HarmonyOS

What is CVE-2021-22478?

CVE-2021-22478 is a medium-severity use after free vulnerability in Huawei Harmonyos, published on 25 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The interface of a certain HarmonyOS module has a UAF vulnerability. Successful exploitation of this vulnerability may lead to information leakage.

Weakness: CWE-416

Which versions are affected by CVE-2021-22478?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2021-22478?

No fix has been published for CVE-2021-22478 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-22478 being exploited?

There is no known exploitation of CVE-2021-22478 in the wild and no public exploit code.

Other vulnerabilities in Huawei Harmonyos

• CVE-2026-34865 Memory corruption in HarmonyOS Critical 10.0
• CVE-2023-34157 Other in HarmonyOS Critical 10.0
• CVE-2023-41294 Denial of service in HarmonyOS Critical 9.8
• CVE-2022-48478 Denial of service in HarmonyOS Critical 9.8
• CVE-2022-48479 Memory corruption in HarmonyOS Critical 9.8

All Huawei Harmonyos vulnerabilities

Sources

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

Also known as GHSA-755m-qxfv-m3wr.