PT-2025-46350 · Avast · Avast Free Antivirus

Dongchan Seo · Published 2025-11-11 · Updated 2025-11-12 · CVE-2025-10905

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Avast Free Antivirus versions prior to 25.9

Description A collision in the MiniFilter driver within Avast Free Antivirus can allow a local attacker with administrative privileges to disable real-time protection and self-defense mechanisms. The issue affects systems running Windows.

Recommendations Update Avast Free Antivirus to version 25.9 or later.

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2025-10905

Affected Products

Avast Free Antivirus

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-10905 · Security Note
• https://t.me/cveNotify/142428 · Telegram Post
• https://gendigital.com/us/en/contact-us/security-advisories/) · Note
• https://twitter.com/CVEnew/status/1988452649226956829 · Twitter Post