CVE-2025-7006: Avast antivirus use of stack memory after free when scanning a malformed PE file
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Gen Digital virus definition streamto a version that resolves this vulnerability.Fixed in VPS 25022500
Event History
Frequently Asked Questions
What is the severity of CVE-2025-7006?
The severity of CVE-2025-7006 is rated as medium with a score of 5.5.
How do I fix CVE-2025-7006?
To fix CVE-2025-7006, you should install virus definitions VPS 25022500 or any later virus-definition update.
What software is affected by CVE-2025-7006?
CVE-2025-7006 affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux.
What risk does CVE-2025-7006 pose?
CVE-2025-7006 poses a risk of Denial-of-Service to the antivirus process when scanning a malformed PE file.
When was CVE-2025-7006 published?
CVE-2025-7006 was published on June 12, 2026.