CVE-2026-24922 Memory corruption in HarmonyOS

Medium 6.9 Published Updated

A buffer overflow in the HDC module of HarmonyOS allows attackers to cause a denial of service.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-24922?

CVE-2026-24922 is a medium-severity memory corruption vulnerability in Huawei Harmonyos, published on 6 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Buffer overflow vulnerability in the HDC module. Impact: Successful exploitation of this vulnerability may affect availability.

Weakness: CWE-120, CWE-122

Which versions are affected by CVE-2026-24922?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2026-24922?

No fix has been published for CVE-2026-24922 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-2026-24922 being exploited?

There is no known exploitation of CVE-2026-24922 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-5qwp-3c2f-h999.

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