CVE-2025-7006 - CVE House
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Status published Medium CVE-2025-7006

Avast antivirus use of stack memory after free when scanning a malformed PE file

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Mike Zhang, an independent security researcher

References

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Affected Vendor

Gen Digital

View all reports →

Affected Software

Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, Avast Business Antivirus
Vulnerable Versions:
0

Timeline

Official Publish: June 12th, 2026
Last Modified: June 15th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-590

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.