Is CVE-2019-5623 actively exploited?

No active exploitation of CVE-2019-5623 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5623 be exploited remotely?

Yes. CVE-2019-5623 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-5623?

CVE-2019-5623 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-5623

CRITICAL

CVE-2019-5623

CWE-77Published: April 29, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Accellion File Transfer Appliance version FTA_8_0_540 suffers from an instance of CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').

NVD Source

Technical Analysis

CVE-2019-5623 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.