CVE-2026-34858: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Huawei HarmonyOS
CVE-2026-34858 is a use-after-free (UAF) vulnerability in the communication module of Huawei HarmonyOS versions 5. 1. 0 and 6. 0. 0. It is caused by a race condition due to improper synchronization when accessing shared resources. Successful exploitation may impact system availability but does not affect confidentiality or integrity. The vulnerability has a CVSS 3. 1 base score of 4. 1, indicating medium severity.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34858) in Huawei HarmonyOS involves a race condition (CWE-362) leading to a use-after-free scenario within the communication module. The flaw arises from concurrent execution using shared resources without proper synchronization, potentially causing system instability or crashes that affect availability. The affected versions are 5.1.0 and 6.0.0. The CVSS 3.1 vector indicates the attack requires local access with high complexity and privileges, no user interaction, and impacts only availability. No vendor advisory or patch information is currently provided.
Potential Impact
Exploitation of this vulnerability may lead to denial of service conditions affecting the availability of the affected HarmonyOS devices. There is no impact on confidentiality or integrity. The attack requires local access with high privileges and is of high complexity, limiting the likelihood of exploitation. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor Huawei's security advisories for updates. Given the local and privileged nature of the attack vector, restricting local access and limiting privilege escalation opportunities may reduce risk.
CVE-2026-34858: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Huawei HarmonyOS
Description
CVE-2026-34858 is a use-after-free (UAF) vulnerability in the communication module of Huawei HarmonyOS versions 5. 1. 0 and 6. 0. 0. It is caused by a race condition due to improper synchronization when accessing shared resources. Successful exploitation may impact system availability but does not affect confidentiality or integrity. The vulnerability has a CVSS 3. 1 base score of 4. 1, indicating medium severity.
CVSS v3.1
Score 4.1medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-34858) in Huawei HarmonyOS involves a race condition (CWE-362) leading to a use-after-free scenario within the communication module. The flaw arises from concurrent execution using shared resources without proper synchronization, potentially causing system instability or crashes that affect availability. The affected versions are 5.1.0 and 6.0.0. The CVSS 3.1 vector indicates the attack requires local access with high complexity and privileges, no user interaction, and impacts only availability. No vendor advisory or patch information is currently provided.
Potential Impact
Exploitation of this vulnerability may lead to denial of service conditions affecting the availability of the affected HarmonyOS devices. There is no impact on confidentiality or integrity. The attack requires local access with high privileges and is of high complexity, limiting the likelihood of exploitation. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor Huawei's security advisories for updates. Given the local and privileged nature of the attack vector, restricting local access and limiting privilege escalation opportunities may reduce risk.
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: 69dc7c4782d89c981f24c26b
Added to database: 4/13/2026, 5:16:55 AM
Last enriched: 4/20/2026, 6:33:24 AM
Last updated: 5/29/2026, 7:48:46 PM
Views: 48
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