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I. Basic Information for CVE-2025-8351
Vulnerability Information

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Vulnerability Title
Scanning a malformed file in Avast Antivirus 8.3.70.94 on MacOS may result in remote code execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
Heap-based Buffer Overflow, Out-of-bounds Read vulnerability in Avast Antivirus on MacOS when scanning a malformed file may allow Local Execution of Code or Denial-of-Service of the anitvirus engine process.This issue affects Antivirus: from 8.3.70.94 before 8.3.70.98.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Avast Antivirus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avast Antivirus是捷克Avast公司的一套杀毒软件。 Avast Antivirus 8.3.70.94版本至8.3.70.98之前版本存在安全漏洞,该漏洞源于堆缓冲区溢出和越界读取,可能导致本地代码执行或拒绝服务。
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
VendorProductAffected VersionsCPESubscribe
AvastAntivirus 8.3.70.94 ~ 8.3.70.98 -
II. Public POCs for CVE-2025-8351
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III. Intelligence Information for CVE-2025-8351
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