Description
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.
Published: 2026-06-12
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Install virus definitions VPS 25020100 or any later virus-definition update. All builds at or above VPS 25020100 include the fix; staying current on definitions is required.

Tracking

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Advisories

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History

Mon, 15 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 13 Jun 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Gen Digital
Gen Digital avast Antivirus
Gen Digital avast Business Antivirus
Gen Digital avast One
Gen Digital avg Antivirus
Gen Digital norton Antivirus
Vendors & Products Gen Digital
Gen Digital avast Antivirus
Gen Digital avast Business Antivirus
Gen Digital avast One
Gen Digital avg Antivirus
Gen Digital norton Antivirus

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

Type Values Removed Values Added
Description 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.
Title Avast antivirus stack overflow when scanning a malformed Office Open XML file
Weaknesses CWE-121
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'}


Subscriptions

Gen Digital Avast Antivirus Avast Business Antivirus Avast One Avg Antivirus Norton Antivirus
cve-icon MITRE

Status: PUBLISHED

Assigner: GEN

Published:

Updated: 2026-06-15T18:11:31.712Z

Reserved: 2025-07-02T12:03:39.699Z

Link: CVE-2025-7019

cve-icon Vulnrichment

Updated: 2026-06-15T18:11:26.898Z

cve-icon NVD

Status : Deferred

Published: 2026-06-12T22:16:49.590

Modified: 2026-06-15T20:49:19.213

Link: CVE-2025-7019

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-13T12:29:24Z

Weaknesses