CVE-2026-24930 Use after free in HarmonyOS

High 8.4 Published 6 Feb 2026 Updated 6 Feb 2026

A use-after-free concurrency flaw in the graphics module allows attackers to cause a denial of service on HarmonyOS devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-24930?

CVE-2026-24930 is a high-severity use after free vulnerability in Huawei Harmonyos, published on 6 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

UAF concurrency vulnerability in the graphics module. Impact: Successful exploitation of this vulnerability may affect availability.

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2026-24930?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2026-24930?

No fix has been published for CVE-2026-24930 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-2026-24930 being exploited?

There is no known exploitation of CVE-2026-24930 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-5qm2-ppw6-vqgq.