CVE-2025-66324 Other in HarmonyOS

High 8.4 Published Updated

Attackers can compromise app data integrity via input verification flaws in the HarmonyOS compression module.

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-2025-66324?

CVE-2025-66324 is a high-severity vulnerability in Huawei Harmonyos, published on 8 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Input verification vulnerability in the compression and decompression module. Impact: Successful exploitation of this vulnerability may affect app data integrity.

Weakness: CWE-269

Which versions are affected by CVE-2025-66324?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2025-66324?

No fix has been published for CVE-2025-66324 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-66324 being exploited?

There is no known exploitation of CVE-2025-66324 in the wild and no public exploit code.

All Huawei Harmonyos vulnerabilities

Sources

Also known as GHSA-xcgv-6w5p-rwwh.

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