CVE-2020-8961: Avira Free Antivirus

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality.

Affected products

• Avira Free Antivirus: before 15.0.2004.1825 (fixed in 15.0.2004.1825)

Published 2020-04-09. Last modified 2026-06-17.