What is the CVSS score of CVE-2025-66330?

CVE-2025-66330 has a CVSS 3.1 base score of 4.9 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Harmonyos are affected by CVE-2025-66330?

CVE-2025-66330 presents moderate security risk, a information exposure vulnerability rated CVSS 4.9. Sensitive information could be exposed to unauthorized parties.

How to fix or mitigate CVE-2025-66330?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review data exposure and access controls.

Harmonyos CVE-2025-66330

EUVD-2025-201673 MEDIUM

Information Exposure (CWE-200)

2025-12-08 psirt@huawei.com

Information Disclosure Harmonyos

4.9

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 17:54 euvd

EUVD-2025-201673

Analysis Generated

Mar 15, 2026 - 17:54 vuln.today

CVE Published

Dec 08, 2025 - 09:15 nvd

MEDIUM 4.9

DescriptionNVD

App lock verification bypass vulnerability in the file management app. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Analysis

App lock verification bypass vulnerability in the file management app. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Technical ContextAI

Information disclosure occurs when an application inadvertently reveals sensitive data to unauthorized actors through error messages, logs, or improper access controls. This vulnerability is classified as Information Exposure (CWE-200).

RemediationAI

Implement proper access controls. Sanitize error messages in production. Review logging practices to avoid capturing sensitive data.

CVE-2025-66330 vulnerability details – vuln.today

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