---
id: CVE-2025-7010
title: >-
  Stack overflow vulnerability due to uncontrolled recursion in Avast Antivirus
  when scanning a malformed PDF file may allow Denial-of-Service of the
  antivirus process.


  This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, …
summary: >-
  Stack overflow vulnerability due to uncontrolled recursion in Avast Antivirus
  when scanning a malformed PDF file may allow Denial-of-Service of the
  antivirus process.


  This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, …
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-674
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-2025-7010'
references:
  - url: 'https://www.gendigital.com/us/en/contact-us/security-advisories/'
    label: security@nortonlifelock.com
tags:
  - nvd
epss: 0.00113
epssPercentile: 0.013
ingestedAt: '2026-09-30T20:23:19.464Z'
---

## Overview

Stack overflow vulnerability due to uncontrolled recursion in Avast Antivirus when scanning a malformed PDF 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 25021208.



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.