CVE-2026-81644

Deferred Deferred - Pending Action

Denial of Service in Huawei Preview Service Module

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Huawei Technologies

Description

DoS vulnerability in the preview service module. Impact: Successful exploitation of this vulnerability may affect availability.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-09

Last Modified

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-81644

EUVD

EUVD-2026-74599

Affected Vendors & Products

Vendor	Product	Version / Range
huawei	harmonyos	to 6.1.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-264	Permissions, Privileges, and Access Controls

Attack-Flow Graph

Executive Summary

CVE-2026-81644 is a Denial of Service (DoS) vulnerability in the preview service module of Huawei HarmonyOS. It allows attackers to disrupt system availability by exploiting flaws in the preview service functionality.

Impact Analysis

This vulnerability may cause system unavailability by crashing or slowing down the preview service module. Users could experience service disruptions or reduced performance in affected devices.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability primarily affects availability through a DoS condition in the preview service module, which may disrupt services but does not explicitly mention data confidentiality or integrity concerns.

Mitigation Strategies

Apply the latest security patches from Huawei for the affected HarmonyOS versions. Monitor network traffic for unusual activity targeting the preview service module. Disable unnecessary services if patches are not immediately available.

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