CVE-2026-34857
Use-After-Free Vulnerability in Communication Module Affecting Availability
Publication date: 2026-04-13
Last updated on: 2026-04-15
Assigner: Huawei Technologies
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| huawei | harmonyos | 5.1.0 |
| huawei | harmonyos | 6.0.0 |
| huawei | harmonyos | 5.1.1 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Use-After-Free (UAF) issue found in the communication module. A UAF vulnerability occurs when a program continues to use memory after it has been freed, which can lead to unexpected behavior or crashes.
How can this vulnerability impact me? :
Successful exploitation of this vulnerability may affect the availability of the affected system or service.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability affects Huawei HarmonyOS devices and may impact availability. Immediate mitigation steps include applying the April 2026 security update released by Huawei, which addresses this and other vulnerabilities in HarmonyOS-based devices.