Is CVE-2018-25235 actively exploited?

No active exploitation of CVE-2018-25235 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-25235 be exploited remotely?

No. CVE-2018-25235 requires local access to exploit.

What is the CVSS score of CVE-2018-25235?

CVE-2018-25235 has a CVSS score of 6.2 (MEDIUM).

HOME VULNERABILITIESCVE-2018-25235

MEDIUM

CVE-2018-25235

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

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.5th

Official Description

NetworkActiv Web Server 4.0 contains a buffer overflow vulnerability in the username field of the Security options that allows local attackers to crash the application by supplying an excessively long string. Attackers can trigger a denial of service by entering a crafted username value exceeding the expected buffer size through the Set username interface.

NVD Source

Technical Analysis

CVE-2018-25235 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.