PT-2026-49019 · Ge Digital · Avg Antivirus+4

Published 2026-06-12 · Updated 2026-06-12 · CVE-2025-7019

NVD

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Stack overflow vulnerability in Avast Antivirus when scanning a malformed Office Open XML 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 25020100.

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.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-7019

Affected Products

Avg Antivirus

Avast Antivirus

Avast Business Antivirus

Avast One

Norton Antivirus

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2025-7019 · Security Note
• https://gendigital.com/us/en/contact-us/security-advisories · Note