What is the CVSS score of CVE-2025-54639?

CVE-2025-54639 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Harmonyos are affected by CVE-2025-54639?

CVE-2025-54639 presents moderate security risk, a insecure deserialization vulnerability rated CVSS 5.5. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-54639?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Harmonyos CVE-2025-54639

MEDIUM

Deserialization of Untrusted Data (CWE-502)

2025-08-06 psirt@huawei.com

Deserialization Harmonyos

5.5

CVSS 3.1 · NVD

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

Analysis Generated

Mar 28, 2026 - 19:05 vuln.today

CVE Published

Aug 06, 2025 - 04:16 nvd

MEDIUM 5.5

DescriptionCVE.org

ParcelMismatch vulnerability in attribute deserialization. Impact: Successful exploitation of this vulnerability may cause playback control screen display exceptions.

AnalysisAI

ParcelMismatch vulnerability in attribute deserialization. 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. ParcelMismatch vulnerability in attribute deserialization. Impact: Successful exploitation of this vulnerability may cause playback control screen display exceptions. 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.

CVE-2025-54639 vulnerability details – vuln.today

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Harmonyos CVE-2025-54639

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code