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CVE-2025-7008— Avast antivirus heap buffer OOB read when scanning a malformed PE file

Quick assessment

Affected
Gen Digital Avast Antivirus
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.

Gen Digital Avast Antivirus是美国Gen Digital公司的一个防病毒与网络安全软件。 Gen Digital Avast Antivirus存在缓冲区错误漏洞，该漏洞源于扫描带有.NET元数据的畸形Windows PE文件时存在堆缓冲区越界读取问题，可能导致本地执行代码或使杀毒进程拒绝服务。

CVSS 7.8 · High EPSS 0.15% · P3

Affected Version Matrix 5

VendorProduct Version RangeStatus
Gen Digital Avast Antivirus < 25021310 affected
Gen Digital Avast Business Antivirus < 25021310 affected
Gen Digital Avast One < 25021310 affected
Gen Digital AVG Antivirus < 25021310 affected
Gen Digital Norton Antivirus < 25021310 affected
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I. Basic Information for CVE-2025-7008

Vulnerability Information
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Vulnerability Title
Avast antivirus heap buffer OOB read when scanning a malformed PE file
Source: CVE Program / CVE List V5
Vulnerability Description
Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file with .NET metadata may allow Local Execution of Code or Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25021310. The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.
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
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Gen Digital Avast Antivirus 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gen Digital Avast Antivirus是美国Gen Digital公司的一个防病毒与网络安全软件。 Gen Digital Avast Antivirus存在缓冲区错误漏洞，该漏洞源于扫描带有.NET元数据的畸形Windows PE文件时存在堆缓冲区越界读取问题，可能导致本地执行代码或使杀毒进程拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
Gen Digital Avast Antivirus 0 ~ 25021310 -
Gen Digital AVG Antivirus 0 ~ 25021310 -
Gen Digital Norton Antivirus 0 ~ 25021310 -
Gen Digital Avast One 0 ~ 25021310 -
Gen Digital Avast Business Antivirus 0 ~ 25021310 -

II. Public POCs for CVE-2025-7008

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III. Intelligence Information for CVE-2025-7008

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Same Patch Batch · Gen Digital · 2026-06-12 · 17 CVEs total

CVE-2026-6676 7.8 HIGH Avira antivirus engine heap buffer OOB write when scanning a malformed POSIX tar archive
CVE-2025-7003 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 1)
CVE-2025-7002 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 2)
CVE-2025-7009 7.8 HIGH Avast antivirus heap buffer OOB read when scanning a malformed PE file
CVE-2025-7017 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed Windows MSI file
CVE-2025-7004 7.8 HIGH Avast antivirus heap buffer OOB write when scanning a malformed PE file
CVE-2025-7011 7.8 HIGH Avast antivirus heap OOB when scanning a malformed zip file
CVE-2025-9032 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PE file
CVE-2025-9033 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 3)
CVE-2025-14098 7.8 HIGH Avira antivirus engine heap buffer OOB write when scanning a malformed MS-DOS executable f
CVE-2026-12068 7.4 HIGH Avira Password Manager credential disclosure via cross-origin autofill in Firefox
CVE-2025-7006 5.5 MEDIUM Avast antivirus use of stack memory after free when scanning a malformed PE file
CVE-2025-7010 5.5 MEDIUM Avast antivirus stack overflow when scanning a malformed PDF file
CVE-2025-7005 5.5 MEDIUM Avast antivirus infinite recursion when scanning a malformed PE file
CVE-2025-7018 5.5 MEDIUM Avira antivirus engine null pointer dereference when scanning a malformed PE file
CVE-2025-7019 5.5 MEDIUM Avast antivirus stack overflow when scanning a malformed Office Open XML file

IV. Related Vulnerabilities

Same product: Avast Antivirus
Same vendor: Gen Digital
Same weakness: CWE-125

V. Comments for CVE-2025-7008

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