CVE-2025-8351— Scanning a malformed file in Avast Antivirus 8.3.70.94 on MacOS may result in remote code execution
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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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
II. Public POCs for CVE-2025-8351
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Avast · 2025-12-01 · 4 CVEs total
| CVE-2025-3500 | 9.0 CRITICAL | Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalati |
| CVE-2025-10101 | 8.1 HIGH | Crafted Mach-O file may allow Remote Code Execution in Avast Antivirus 15.7 on MacOS |
| CVE-2025-7007 | 7.5 HIGH | Null pointer dereference in Avast Antivirus on macOS (16.0.0) or Linux (3.0.3) |
IV. Related Vulnerabilities
Same product: Antivirus
- CVE-2025-7007
Null pointer dereference in Avast Antivirus on macOS (16.0. - CVE-2025-3500
Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows ma - CVE-2025-10101
Crafted Mach-O file may allow Remote Code Execution in Avast - CVE-2024-13206
REVE Antivirus reveinstall default permission - CVE-2024-9484
Avast Antivirus 安全漏洞
Same vendor: Avast
- CVE-2020-37037
AVAST SecureLine 5.5.522.0 - 'SecureLine' Unquoted Service P - CVE-2025-7007
Null pointer dereference in Avast Antivirus on macOS (16.0. - CVE-2025-3500
Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows ma - CVE-2025-10101
Crafted Mach-O file may allow Remote Code Execution in Avast - CVE-2025-13032
Gen Digital Antivirus 安全漏洞
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
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V. Comments for CVE-2025-8351
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