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CVE-2026-34855

Quick assessment

Affected
Huawei HarmonyOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Huawei EMUI和Huawei HarmonyOS都是中国华为（Huawei）公司的产品。Huawei EMUI是一款基于Android开发的移动端操作系统。Huawei HarmonyOS是一个操作系统。提供一个基于微内核的全场景分布式操作系统。 Huawei EMUI和Huawei HarmonyOS存在安全漏洞，该漏洞源于内核模块存在越界写入，可能影响可用性和机密性。

CVSS 5.7 · Medium EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-34855

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds write vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Huawei EMUI和Huawei HarmonyOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Huawei EMUI和Huawei HarmonyOS都是中国华为（Huawei）公司的产品。Huawei EMUI是一款基于Android开发的移动端操作系统。Huawei HarmonyOS是一个操作系统。提供一个基于微内核的全场景分布式操作系统。 Huawei EMUI和Huawei HarmonyOS存在安全漏洞，该漏洞源于内核模块存在越界写入，可能影响可用性和机密性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Huawei HarmonyOS 6.0.0 -
Huawei EMUI 15.0.0 -

II. Public POCs for CVE-2026-34855

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III. Intelligence Information for CVE-2026-34855

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Same Patch Batch · Huawei · 2026-04-13 · 20 CVEs total

CVE-2026-34853 7.7 HIGH Huawei EMUI和Huawei HarmonyOS 安全漏洞
CVE-2026-34856 7.3 HIGH Huawei HarmonyOS 安全漏洞
CVE-2026-28553 6.9 MEDIUM Huawei EMUI和Huawei HarmonyOS 安全漏洞
CVE-2026-34864 6.8 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34863 6.7 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34862 6.3 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34861 6.3 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34852 6.1 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34859 5.9 MEDIUM Huawei EMUI和Huawei HarmonyOS 安全漏洞
CVE-2026-34854 5.7 MEDIUM Huawei EMUI和Huawei HarmonyOS 安全漏洞
CVE-2026-34867 5.6 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34866 5.1 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34857 4.7 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34858 4.1 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34860 4.1 MEDIUM Huawei HarmonyOS 安全漏洞
CVE-2026-34849 2.5 LOW Huawei HarmonyOS 安全漏洞
CVE-2026-34851 2.2 LOW Huawei HarmonyOS 安全漏洞
CVE-2026-34850 1.9 LOW Huawei HarmonyOS 安全漏洞
CVE-2026-34865 Huawei HarmonyOS 安全漏洞

IV. Related Vulnerabilities

Same product: HarmonyOS
Same vendor: Huawei
Same weakness: CWE-20

V. Comments for CVE-2026-34855

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