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CVE-2021-46786

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 HarmonyOS是中国华为（HUAWEI）公司的一个操作系统。提供一个基于微内核的全场景分布式操作系统。 HUAWEI HarmonyOS 内核存在安全漏洞，该漏洞源于音频模块中对应用空间传递的参数校验不够充分，攻击者利用此漏洞可能造成数据越界踩内存的问题。

AI Predicted 7.8 Difficulty: Hard EPSS 0.76% · P54

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-46786

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The audio module has a vulnerability in verifying the parameters passed by the application space.Successful exploitation of this vulnerability may cause out-of-bounds memory access.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
HUAWEI HarmonyOS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HUAWEI HarmonyOS是中国华为（HUAWEI）公司的一个操作系统。提供一个基于微内核的全场景分布式操作系统。 HUAWEI HarmonyOS 内核存在安全漏洞，该漏洞源于音频模块中对应用空间传递的参数校验不够充分，攻击者利用此漏洞可能造成数据越界踩内存的问题。
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 2.0 -
Huawei EMUI 12.0.0 -

II. Public POCs for CVE-2021-46786

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III. Intelligence Information for CVE-2021-46786

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Other References for CVE-2021-46786 (2)

Same Patch Batch · Huawei · 2022-05-13 · 13 CVEs total

CVE-2022-29796 HUAWEI HarmonyOS 安全漏洞
CVE-2022-29795 HUAWEI HarmonyOS 代码问题漏洞
CVE-2022-29794 HUAWEI HarmonyOS 资源管理错误漏洞
CVE-2022-29792 HUAWEI HarmonyOS 安全漏洞
CVE-2022-29791 HUAWEI HarmonyOS 安全漏洞
CVE-2022-29790 HUAWEI HarmonyOS 安全漏洞
CVE-2022-29789 HUAWEI HarmonyOS 安全漏洞
CVE-2022-22261 HUAWEI HarmonyOS 安全漏洞
CVE-2022-22260 HUAWEI HarmonyOS 资源管理错误漏洞
CVE-2021-46788 HUAWEI EMUI/Magic UI 安全漏洞
CVE-2021-46787 HUAWEI HarmonyOS 安全漏洞
CVE-2021-46785 HUAWEI HarmonyOS 安全漏洞

IV. Related Vulnerabilities

Same product: HarmonyOS
Same vendor: Huawei

V. Comments for CVE-2021-46786

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