Privilege escalation in Avast
CVE-2022-4173
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…
Vulnerability class: Privilege Escalation
EPSS: 0.007 (47.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Avast
- Avast Avg_antivirus
- Nortonlifelock Avast And Avg Antivirus — versions 20.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@nortonlifelock.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-4173?
- CVE-2022-4173 is a high-severity vulnerability in Avast, classified under Improper Privilege Management. CVSS score: 7.3/10. Published 2022-12-06.
- How severe is CVE-2022-4173?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2022-4173 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.