CVE-2026-34856: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Huawei HarmonyOS
CVE-2026-34856 is a use-after-free (UAF) vulnerability in the communication module of Huawei HarmonyOS version 6. 0. 0. It is caused by a race condition due to improper synchronization when accessing shared resources. Exploitation of this vulnerability may impact system availability. The vulnerability has a high severity rating with a CVSS score of 7. 3. No official patch or remediation guidance has been provided by the vendor at this time. There are no known exploits in the wild currently.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34856) in Huawei HarmonyOS 6.0.0 arises from a race condition (CWE-362) in the communication module leading to a use-after-free condition. Improper synchronization when concurrently accessing shared resources can cause memory to be freed while still in use, potentially destabilizing the system and affecting availability. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges or user interaction required, with low confidentiality and integrity impact but high availability impact.
Potential Impact
Successful exploitation may lead to denial of service or system instability by affecting the availability of the affected HarmonyOS device. Confidentiality and integrity impacts are low according to the CVSS vector. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor Huawei's security advisories for updates. No specific workaround or temporary fix is currently documented.
CVE-2026-34856: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Huawei HarmonyOS
Description
CVE-2026-34856 is a use-after-free (UAF) vulnerability in the communication module of Huawei HarmonyOS version 6. 0. 0. It is caused by a race condition due to improper synchronization when accessing shared resources. Exploitation of this vulnerability may impact system availability. The vulnerability has a high severity rating with a CVSS score of 7. 3. No official patch or remediation guidance has been provided by the vendor at this time. There are no known exploits in the wild currently.
CVSS v3.1
Score 7.3high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-34856) in Huawei HarmonyOS 6.0.0 arises from a race condition (CWE-362) in the communication module leading to a use-after-free condition. Improper synchronization when concurrently accessing shared resources can cause memory to be freed while still in use, potentially destabilizing the system and affecting availability. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges or user interaction required, with low confidentiality and integrity impact but high availability impact.
Potential Impact
Successful exploitation may lead to denial of service or system instability by affecting the availability of the affected HarmonyOS device. Confidentiality and integrity impacts are low according to the CVSS vector. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor Huawei's security advisories for updates. No specific workaround or temporary fix is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- huawei
- Date Reserved
- 2026-03-31T01:11:13.701Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dc6aaf82d89c981fecb079
Added to database: 4/13/2026, 4:01:51 AM
Last enriched: 4/20/2026, 6:22:25 AM
Last updated: 5/27/2026, 10:51:31 PM
Views: 84
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