Is CVE-2019-3621 actively exploited?

No active exploitation of CVE-2019-3621 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-3621 be exploited remotely?

No. CVE-2019-3621 requires physical access to exploit.

What is the CVSS score of CVE-2019-3621?

CVE-2019-3621 has a CVSS score of 6.8 (MEDIUM).

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MEDIUM

CVE-2019-3621

NVD-CWE-noinfoPublished: July 25, 2019· Updated: Jun 17, 2026

6.8

CVSS v3.1

Official Description

Authentication protection bypass vulnerability in McAfee Data Loss Prevention (DLPe) for Windows 11.x prior to 11.3.0 allows physical local user to bypass the Windows lock screen via DLPe processes being killed just prior to the screen being locked or when the screen is locked. The attacker requires physical access to the machine.

NVD Source

Technical Analysis

CVE-2019-3621 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.