What is the CVSS score of CVE-2025-54635?

CVE-2025-54635 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of Harmonyos are affected by CVE-2025-54635?

CVE-2025-54635 presents moderate security risk, a use-after-free vulnerability rated CVSS 5.9. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-54635?

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

Harmonyos CVE-2025-54635

MEDIUM

Use After Free (CWE-416)

2025-08-06 psirt@huawei.com

Information Disclosure Use After Free Memory Corruption Harmonyos

5.9

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:05 vuln.today

CVE Published

Aug 06, 2025 - 03:15 nvd

MEDIUM 5.9

DescriptionNVD

Vulnerability of returning released pointers in the distributed notification service. Impact: Successful exploitation of this vulnerability may affect availability.

AnalysisAI

Vulnerability of returning released pointers in the distributed notification service. Rated medium severity (CVSS 5.9), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. Vulnerability of returning released pointers in the distributed notification service. Impact: Successful exploitation of this vulnerability may affect availability. Affected products include: Huawei Harmonyos.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.

CVE-2025-54635 vulnerability details – vuln.today

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