PT-2026-29021 · Networkactiv · Vwebserver

Published 2026-03-30 · Updated 2026-04-08 · CVE-2018-25235

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions NetworkActiv Web Server version 4.0

Description NetworkActiv Web Server 4.0 contains a buffer overflow in the username field within the Security options. Local attackers can cause the application to crash by providing an excessively long string. A denial of service can be triggered by entering a crafted username value that exceeds the expected buffer size through the Set username interface.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-25235

Affected Products

Vwebserver

References · 6

• 🔥 https://exploit-db.com/exploits/45302 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-25235 · Security Note
• https://t.me/cveNotify/158475 · Telegram Post
• https://vulncheck.com/advisories/networkactiv-web-server-username-field-buffer-overflow-dos · Note
• https://networkactiv.com/WebServer.html · Note
• https://networkactiv.com/Dev · Note