Description
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the Quarantine process, leading to arbitrary file/directory deletion. The issue was fixed with Avast and AVG Antivirus version 22.11 and virus definitions from 14 February 2023 or later.
References (1)
Core 1
Core References
Third Party Advisory
https://support.norton.com/sp/static/external/tools/security-advisories.html
Scores
CVSS v3
6.5
EPSS
0.0017
EPSS Percentile
6.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-367
Status
published
Products (2)
avast/antivirus
22.5 - 22.11
avg/anti-virus
22.5 - 22.11
Published
Apr 19, 2023
Tracked Since
Feb 18, 2026