CVE-2025-54638

MEDIUM
2025-08-06 [email protected]
5.5
CVSS 3.1
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CVSS Vector

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

Tags

Deserialization Harmonyos

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.

Analysis

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 Context

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.

Affected Products

Huawei Harmonyos.

Remediation

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.

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +28
POC: 0

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CVE-2025-54638 vulnerability details – vuln.today
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