CVE-2018-25235 MEDIUM

CVE-2018-25235: NetworkActiv Web Server 4.0 Username Field Buffer Overflow DoS

Vendor Networkactiv
Product NetworkActiv Web Server
Weakness CWE-787
Published March 30, 2026
Last update March 30, 2026

CVSS base score

6.9/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 30, 2026 CVE published
March 30, 2026 Record updated