CVE-2020-9399

medium

Description

The Avast AV parsing engine allows virus-detection bypass via a crafted ZIP archive. This affects versions before 12 definitions 200114-0 of Antivirus Pro, Antivirus Pro Plus, and Antivirus for Linux.

References

Advisories

https://seclists.org/fulldisclosure/2020/Feb/35

https://blog.zoller.lu/p/tzo-23-2020-avast-generic-archive.html

Details

Source: Mitre, NVD

Published: 2020-02-28

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N