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Harmonyos CVE-2025-54638

MEDIUM
Deserialization of Untrusted Data (CWE-502)
2025-08-06 psirt@huawei.com
Deserialization Harmonyos
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:05 vuln.today
CVE Published
Aug 06, 2025 - 03:15 nvd
MEDIUM 5.5

DescriptionCVE.org

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

AnalysisAI

Issue of inconsistent read/write serialization in the ad module. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. Issue of inconsistent read/write serialization in the ad module. Impact: Successful exploitation of this vulnerability may affect the availability of the ad service. Affected products include: Huawei Harmonyos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.

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CVE-2025-54638 vulnerability details – vuln.today
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