CVE-2018-25230

MEDIUM

Free IP Switcher 3.1 Denial of Service via Computer Name

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25230. PoCs published by Victor Mondragón.

AI-analyzed exploit summary This PoC exploits a buffer overflow vulnerability in Free IP Switcher 3.1 by generating a malicious input file (ip_code.txt) containing 240 'A' characters. When pasted into the 'Computer Name' field and activated, it triggers a denial-of-service (DoS) crash.

Description

Free IP Switcher 3.1 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Computer Name field. Attackers can paste a malicious payload into the Computer Name input field and click Activate to trigger a denial of service condition that crashes the application.

Exploits (1)

exploitdb WORKING POC
by Victor Mondragón · pythondoswindows
https://www.exploit-db.com/exploits/46382

This PoC exploits a buffer overflow vulnerability in Free IP Switcher 3.1 by generating a malicious input file (ip_code.txt) containing 240 'A' characters. When pasted into the 'Computer Name' field and activated, it triggers a denial-of-service (DoS) crash.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Free IP Switcher 3.1
No auth needed
Prerequisites: Python to generate the payload file · User interaction to paste the payload into the application
devstral-2 · analyzed Apr 08, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-46382
https://www.exploit-db.com/exploits/46382
Product product
Official Product Homepage
http://www.eusing.com/index.html
Product product
Product Reference
http://www.eusing.com/ipscan/free_ip_scanner.htm
Third Party Advisory third-party-advisory
VulnCheck Advisory: Free IP Switcher 3.1 Denial of Service via Computer Name
https://www.vulncheck.com/advisories/free-ip-switcher-denial-of-service-via-computer-name

Scores

CVSS v3 5.5
EPSS 0.0029
EPSS Percentile 20.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (2)
Eusing/Free IP Switcher 3.1
eusing/free_ip_switcher < 3.1
Published Mar 30, 2026
Tracked Since Mar 30, 2026