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CVE-2026-58558

Quick assessment

Affected
Huawei Harmony OS
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 harmonyos是中国Huawei公司的一个分布式操作系统平台。 Huawei harmonyos和Huawei EMUI存在处理逻辑错误漏洞，该漏洞源于文件系统中的权限控制问题，可能影响服务机密性。以下版本受到影响：Harmony OS 4.3.1版本、4.3.0版本、4.2.0版本、4.0.0版本和EMUI 15.0.0版本、14.2.0版本、14.0.0版本。

CVSS 7.8 · High EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 7

VendorProduct Version RangeStatus
Huawei EMUI 15.0.0 affected
14.2.0 affected
14.0.0 affected
Huawei Harmony OS 4.3.1 affected
4.3.0 affected
4.2.0 affected
4.0.0 affected
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I. Basic Information for CVE-2026-58558

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Permission control vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
业务逻辑错误
Source: CVE Program / CVE List V5
Vulnerability Title
Huawei harmonyos 处理逻辑错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Huawei harmonyos是中国Huawei公司的一个分布式操作系统平台。 Huawei harmonyos和Huawei EMUI存在处理逻辑错误漏洞，该漏洞源于文件系统中的权限控制问题，可能影响服务机密性。以下版本受到影响：Harmony OS 4.3.1版本、4.3.0版本、4.2.0版本、4.0.0版本和EMUI 15.0.0版本、14.2.0版本、14.0.0版本。
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 Harmony OS 4.3.1 -
Huawei EMUI 15.0.0 -

II. Public POCs for CVE-2026-58558

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III. Intelligence Information for CVE-2026-58558

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Vendor Advisories for CVE-2026-58558 (2)

Same Patch Batch · Huawei · 2026-07-15 · 11 CVEs total

CVE-2026-58555 6.6 MEDIUM Huawei HarmonyOS 权限许可和访问控制问题漏洞
CVE-2026-58554 6.6 MEDIUM Huawei HarmonyOS 信息泄露漏洞
CVE-2026-58559 6.5 MEDIUM Huawei harmonyos 资源管理错误漏洞
CVE-2026-58551 5.1 MEDIUM Huawei HarmonyOS 缓冲区错误漏洞
CVE-2026-58552 5.1 MEDIUM Huawei HarmonyOS 缓冲区错误漏洞
CVE-2026-58556 5.1 MEDIUM Huawei harmonyos 权限许可和访问控制问题漏洞
CVE-2026-58557 4.8 MEDIUM Huawei HarmonyOS 处理逻辑错误漏洞
CVE-2026-58549 4.0 MEDIUM Huawei harmonyos 缓冲区错误漏洞
CVE-2026-58550 4.0 MEDIUM Huawei HarmonyOS 缓冲区错误漏洞
CVE-2026-58553 4.0 MEDIUM Huawei HarmonyOS 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Harmony OS
Same vendor: Huawei
Same weakness: CWE-840