---
id: CVE-2025-7006
title: >-
  Use of stack memory after free vulnerability in Avast Antivirus when scanning
  a malformed Windows PE file may allow Denial-of-Service of the antivirus
  process.


  This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast O…
summary: >-
  Use of stack memory after free vulnerability in Avast Antivirus when scanning
  a malformed Windows PE file may allow Denial-of-Service of the antivirus
  process.


  This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast O…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-590
published: '2026-06-12'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T20:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-7006'
references:
  - url: 'https://www.gendigital.com/us/en/contact-us/security-advisories/'
    label: security@nortonlifelock.com
tags:
  - nvd
epss: 0.00111
epssPercentile: 0.01232
ingestedAt: '2026-09-30T20:23:19.462Z'
---

## Overview

Use of stack memory after free vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow 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 25022500.



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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.