CVE-2026-34854: CWE-416 Use after free in Huawei HarmonyOS
CVE-2026-34854 is a use-after-free (UAF) vulnerability in the kernel module of Huawei HarmonyOS affecting multiple versions from 4. 0. 0 through 6. 0. 0. Successful exploitation impacts system availability and confidentiality. The vulnerability has a medium severity with a CVSS score of 5. 7. 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 is a use-after-free (CWE-416) flaw located in the kernel module of Huawei HarmonyOS versions 4.0.0 to 6.0.0. Exploiting this flaw can lead to a compromise of system availability and confidentiality. The CVSS 3.1 vector indicates the attack requires local access with high privileges and high attack complexity, without user interaction. The vendor has published the vulnerability but has not yet provided an official fix or remediation guidance.
Potential Impact
Exploitation of this vulnerability can result in denial of service (availability impact) and unauthorized disclosure of information (confidentiality impact) on affected HarmonyOS devices. The attack requires local access with high privileges and is complex to execute, limiting the likelihood of widespread exploitation. 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. Since no official fix or temporary mitigation has been announced by Huawei, users should monitor for vendor updates. Until a patch is available, restricting local privileged access and minimizing exposure to untrusted users may reduce risk.
CVE-2026-34854: CWE-416 Use after free in Huawei HarmonyOS
Description
CVE-2026-34854 is a use-after-free (UAF) vulnerability in the kernel module of Huawei HarmonyOS affecting multiple versions from 4. 0. 0 through 6. 0. 0. Successful exploitation impacts system availability and confidentiality. The vulnerability has a medium severity with a CVSS score of 5. 7. 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 5.7medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a use-after-free (CWE-416) flaw located in the kernel module of Huawei HarmonyOS versions 4.0.0 to 6.0.0. Exploiting this flaw can lead to a compromise of system availability and confidentiality. The CVSS 3.1 vector indicates the attack requires local access with high privileges and high attack complexity, without user interaction. The vendor has published the vulnerability but has not yet provided an official fix or remediation guidance.
Potential Impact
Exploitation of this vulnerability can result in denial of service (availability impact) and unauthorized disclosure of information (confidentiality impact) on affected HarmonyOS devices. The attack requires local access with high privileges and is complex to execute, limiting the likelihood of widespread exploitation. 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. Since no official fix or temporary mitigation has been announced by Huawei, users should monitor for vendor updates. Until a patch is available, restricting local privileged access and minimizing exposure to untrusted users may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- huawei
- Date Reserved
- 2026-03-31T01:11:13.700Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dc7c4582d89c981f24c1d0
Added to database: 4/13/2026, 5:16:53 AM
Last enriched: 4/20/2026, 6:22:12 AM
Last updated: 5/29/2026, 8:00:11 AM
Views: 39
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