CVE-2026-34856 - Vulnerability Details - OpenCVE

ReportizFlow

UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Huawei	Harmonyos

Configuration 1 [-]

cpe:2.3:o:huawei:harmonyos:6.0.0:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://consumer.huawei.com/en/support/bulletin/2026/4/
https://consumer.huawei.com/en/support/bulletinwearables/2026/4/

History

Thu, 16 Apr 2026 05:00:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:o:huawei:harmonyos:6.0.0:::::::*

Mon, 13 Apr 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 13 Apr 2026 14:30:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in Huawei HarmonyOS Communication Module Leading to Availability Disruption

Mon, 13 Apr 2026 13:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Huawei Huawei harmonyos
Vendors & Products		Huawei Huawei harmonyos

Mon, 13 Apr 2026 04:00:00 +0000

Type	Values Removed	Values Added
Description		UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
Weaknesses		CWE-362
References		https://consumer.huawei.com/en/support/bulletin/2026/4/ https://consumer.huawei.com/en/support/bulletinwearables/2026/4/
Metrics		cvssV3_1 `{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H'}`

MITRE

Status: PUBLISHED

Assigner: huawei

Published: 2026-04-13T03:56:26.306Z

Updated: 2026-04-13T15:01:46.396Z

Reserved: 2026-03-31T01:11:13.701Z

Link: CVE-2026-34856

Vulnrichment

Updated: 2026-04-13T15:01:42.596Z

NVD

Status : Analyzed

Published: 2026-04-13T04:16:12.437

Modified: 2026-04-16T04:47:27.467

Link: CVE-2026-34856

Redhat

No data.

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