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.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Install virus definitions VPS 25021208 or any later virus-definition update. All builds at or above VPS 25021208 include the fix; staying current on definitions is required.


Workaround

No workaround given by the vendor.

History

Fri, 12 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Avast antivirus stack overflow when scanning a malformed PDF file
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GEN

Published:

Updated: 2026-06-12T22:11:22.855Z

Reserved: 2025-07-02T08:18:37.465Z

Link: CVE-2025-7010

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-12T22:16:49.080

Modified: 2026-06-12T22:16:49.080

Link: CVE-2025-7010

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T23:30:08Z

Weaknesses