Medium severity · published Nov 11, 2025
CVE-2025-10905
Collision in minifilter driver of Avast Free Antivirus results in disabling of real-time protection
4.4
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
Free Antivirus · Avast
before 25.9 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-10905
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-10905
www.gendigital.com
https://www.gendigital.com/us/en/contact-us/security-advisories/)
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