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.
problem types: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
affected:
{
defaultStatus: unaffected
platforms: Windows
product: Avast Antivirus
vendor: Avast
versions:
lessThanOrEqual: 22.10, status: affected, version: 22.5, versionType: 22.11
}
{
defaultStatus: unaffected
platforms: Windows
product: AVG Antivirus
vendor: AVG
versions:
lessThanOrEqual: 22.10, status: affected, version: 22.5, versionType: 22.11
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: LOW
baseScore: 6.5
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL