CVE-2016-4025

MEDIUM

Avast - Auth Bypass

Title source: llm

Description

Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call.

References (1)

[Technical Description, Third Party Advisory] https://labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025/

Scores

CVSS v3 5.5

EPSS 0.0006

EPSS Percentile 19.6%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Classification

CWE

CWE-254

Status published

Affected Products (43)

avast/business_security

avast/free_antivirus

avast/internet_security

... and 28 more

Timeline

Published Nov 03, 2016

Tracked Since Feb 18, 2026