CVE-2026-34855: CWE-20 Improper input validation in Huawei HarmonyOS
CVE-2026-34855 is an out-of-bounds write vulnerability in the kernel module of Huawei HarmonyOS affecting multiple versions from 4. 0. 0 to 6. 0. 0. Exploitation can impact system availability and confidentiality. The vulnerability is due to improper input validation (CWE-20). It has a CVSS 3. 1 base score of 5. 7, indicating medium severity.
AI Analysis
Technical Summary
This vulnerability in Huawei HarmonyOS kernel module involves improper input validation leading to an out-of-bounds write condition. Successful exploitation can compromise system availability and confidentiality. The affected versions include HarmonyOS 4.0.0 through 6.0.0. The CVSS vector indicates the attack requires local access with high privileges and high attack complexity, without user interaction. No official remediation or patch information is provided at this time.
Potential Impact
Exploitation of this vulnerability can lead to a loss of availability and confidentiality of the affected system. The CVSS score reflects that an attacker with high privileges and local access could cause significant impact, though no integrity loss is indicated. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local privileged access and monitor for updates from Huawei regarding patches or mitigations.
CVE-2026-34855: CWE-20 Improper input validation in Huawei HarmonyOS
Description
CVE-2026-34855 is an out-of-bounds write vulnerability in the kernel module of Huawei HarmonyOS affecting multiple versions from 4. 0. 0 to 6. 0. 0. Exploitation can impact system availability and confidentiality. The vulnerability is due to improper input validation (CWE-20). It has a CVSS 3. 1 base score of 5. 7, indicating medium severity.
CVSS v3.1
Score 5.7medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Huawei HarmonyOS kernel module involves improper input validation leading to an out-of-bounds write condition. Successful exploitation can compromise system availability and confidentiality. The affected versions include HarmonyOS 4.0.0 through 6.0.0. The CVSS vector indicates the attack requires local access with high privileges and high attack complexity, without user interaction. No official remediation or patch information is provided at this time.
Potential Impact
Exploitation of this vulnerability can lead to a loss of availability and confidentiality of the affected system. The CVSS score reflects that an attacker with high privileges and local access could cause significant impact, though no integrity loss is indicated. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local privileged access and monitor for updates from Huawei regarding patches or mitigations.
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: 69dc7c4582d89c981f24c1d3
Added to database: 4/13/2026, 5:16:53 AM
Last enriched: 4/20/2026, 6:22:15 AM
Last updated: 5/27/2026, 8:08:44 PM
Views: 45
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