CVE-2025-54638 Deserialization in HarmonyOS

What is CVE-2025-54638?

CVE-2025-54638 is a medium-severity unsafe deserialization vulnerability in Huawei Harmonyos, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Issue of inconsistent read/write serialization in the ad module. Impact: Successful exploitation of this vulnerability may affect the availability of the ad service.

Weakness: CWE-502

Which versions are affected by CVE-2025-54638?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2025-54638?

No fix has been published for CVE-2025-54638 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-54638 being exploited?

There is no known exploitation of CVE-2025-54638 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-frv6-45p4-3x4x.