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Vulnerability record · CVE-2022-4173 · published 6 December 2022

CVE-2022-4173: Avast improper privilege management vulnerability

Avast · Avast

A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.

8.8 CVSS 3.1 High EPSS 0.70% · top 48.7% CWE-269 · Improper privilege management
8.8CVSS 3.1 base score
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.norton.com/sp/static/external/tools/security-advisories.html Third Party Advisory
https://support.norton.com/sp/static/external/tools/security-advisories.html Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-4173), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.