CVE-2021-45336

PoC —

CVSS 3.1

8.8 high

EPSS

<1%p38

Published

Dec 27, 2021 (Dec 27, 2021)

Modified

Jun 17, 2026

Description

Privilege escalation vulnerability in the Sandbox component of Avast Antivirus prior to 20.4 allows a local sandboxed code to gain elevated privileges by using system IPC interfaces which could lead to exit the sandbox and acquire SYSTEM privileges.

Vendors: avast
Products: antivirus
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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