CVE-2019-18894

HIGH Year: 2019
CVSS v3 Score
7.8
High
CVSS v2 Score
9.3
Critical
Weakness Type
CWE-78
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Vulnerability Description

In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox.

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