CVE-2021-45337

PoC —

CVSS 3.1

8.8 high

EPSS

<1%p37

Published

Dec 27, 2021 (Dec 27, 2021)

Modified

Jun 17, 2026

Description

Privilege escalation vulnerability in the Self-Defense driver of Avast Antivirus prior to 20.8 allows a local user with SYSTEM privileges to gain elevated privileges by "hollowing" process wsc_proxy.exe which could lead to acquire antimalware (AM-PPL) protection.

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 (0.4%)

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