CVE-2021-45339: High severity avast antivirus vulnerability
Published Dec 27, 2021
·Updated
Privilege escalation vulnerability in Avast Antivirus prior to 20.4 allows a local user to gain elevated privileges by "hollowing" trusted process which could lead to the bypassing of Avast self-defense.
Affected Software
1 affected component
Avast Antivirus<20.4
Event History
Dec 27, 2021
CVE Published
via MITRE·12:57 PM
Data Sourced
via MITRE·12:57 PM
Description
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is CVE-2021-45339?
CVE-2021-45339 is a privilege escalation vulnerability in Avast Antivirus prior to version 20.4.
2
How does CVE-2021-45339 work?
CVE-2021-45339 allows a local user to gain elevated privileges by "hollowing" trusted process, which can bypass Avast self-defense mechanisms.
3
What is the severity of CVE-2021-45339?
CVE-2021-45339 has a severity score of 7.8 (high).
4
How can I fix CVE-2021-45339?
To fix CVE-2021-45339, update Avast Antivirus to version 20.4 or later.
5
Where can I find more information about CVE-2021-45339?
You can find more information about CVE-2021-45339 on the Avast website and the GitHub page linked in the references.