CVE-2025-10905
Medium
Description
Collision in MiniFilter driver in Avast Software Avast Free Antivirus before 25.9 on Windows allows a local attacker with administrative privileges to disable real-time protection and self-defense mechanisms.
SeverityMedium
CVSS4.4
Exploit probability—
ProductFree Antivirus
PublishedNov 11, 2025
First seenNov 11, 2025
Weakness typeCWE-693CWE-693
How to fix
Update
- Avast Free Antivirus25.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Avast Free Antivirus | v < 25.9 | 25.9 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.