CVE-2020-10867: Avast Antivirus

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled.

Affected products

• Avast Antivirus: before 20.0 (fixed in 20.0)

Published 2020-04-01. Last modified 2026-06-17.