CVE-2026-34858
Received Received - Intake
Use-After-Free in Communication Module Causing Availability Impact

Publication date: 2026-04-13

Last updated on: 2026-04-15

Assigner: Huawei Technologies

Description
UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
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Meta Information
Published
2026-04-13
Last Modified
2026-04-15
Generated
2026-06-16
AI Q&A
2026-04-13
EPSS Evaluated
2026-06-15
NVD
CVE-2026-34858
EUVD
EUVD-2026-21836
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
huawei harmonyos 5.1.0
huawei harmonyos 6.0.0
huawei harmonyos 5.1.1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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Executive Summary

This vulnerability is a Use-After-Free (UAF) issue found in the communication module. A UAF vulnerability occurs when a program continues to use a pointer after the memory it points to has been freed, which can lead to unpredictable behavior or crashes.

Impact Analysis

Successful exploitation of this vulnerability may affect the availability of the affected system or service.

Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

Mitigation Strategies

To mitigate this vulnerability, apply the latest security updates released by Huawei in April 2026 for HarmonyOS devices.

These updates include patches addressing various vulnerabilities affecting multiple modules and third-party libraries in HarmonyOS-based devices.

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