CVE-2021-40028 Memory corruption in HarmonyOS

High 7.5 Published Updated

An out-of-bounds memory write in the HarmonyOS eID module allows attackers to compromise data integrity.

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-2021-40028?

CVE-2021-40028 is a high-severity memory corruption vulnerability in Huawei Harmonyos, published on 7 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The eID module has an out-of-bounds memory write vulnerability,Successful exploitation of this vulnerability may affect data integrity.

Weakness: CWE-787

Which versions are affected by CVE-2021-40028?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2021-40028?

No fix has been published for CVE-2021-40028 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-40028 being exploited?

There is no known exploitation of CVE-2021-40028 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-jc9q-9gjg-v8mr.

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