Is CVE-2019-25654 actively exploited?

No active exploitation of CVE-2019-25654 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-25654 be exploited remotely?

Yes. CVE-2019-25654 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-25654?

CVE-2019-25654 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2019-25654

CWE-787Published: March 30, 2026· Updated: Mar 30, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.6th

Official Description

Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.

NVD Source

Technical Analysis

CVE-2019-25654 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 availability disruption (denial of service), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.