Is CVE-2019-25660 actively exploited?

No active exploitation of CVE-2019-25660 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-25660 be exploited remotely?

No. CVE-2019-25660 requires local access to exploit.

What is the CVSS score of CVE-2019-25660?

CVE-2019-25660 has a CVSS score of 6.2 (MEDIUM).

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MEDIUM

CVE-2019-25660

CWE-787Published: April 5, 2026· Updated: Apr 7, 2026

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.6th

Official Description

LanHelper 1.74 contains a local buffer overflow vulnerability that allows attackers to crash the application by sending excessively long input strings. Attackers can exploit the Form Send Message feature by pasting 6000 bytes of data into the Message text field to trigger a denial of service condition.

NVD Source

Technical Analysis

CVE-2019-25660 requires local access, meaning attackers must already have a foothold on the target system.

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 6.2.

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