CVE-1999-0441

WinGate - Denial of Service via Winsock Redirector Service Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-0441. PoCs published by Prizm.

AI-analyzed exploit summary This Python script exploits a buffer overflow vulnerability in WinGate's Winsock redirector service by sending 2000 'A' characters to port 2080, causing a denial of service (DoS) by crashing all WinGate services. The vulnerability affects Qbik Wingate 3.0 and is resolved in version 4.0.1.

Description

Remote attackers can perform a denial of service in WinGate machines using a buffer overflow in the Winsock Redirector Service.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Prizm · pythondoswindows
https://www.exploit-db.com/exploits/19410

This Python script exploits a buffer overflow vulnerability in WinGate's Winsock redirector service by sending 2000 'A' characters to port 2080, causing a denial of service (DoS) by crashing all WinGate services. The vulnerability affects Qbik Wingate 3.0 and is resolved in version 4.0.1.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Qbik Wingate 3.0
No auth needed
Prerequisites: Network access to the target system · WinGate 3.0 running on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/509
Various Sources third-party-advisory x_refsource_eeye
http://www.eeye.com/html/Research/Advisories/AD02221999.html

Scores

EPSS 0.0552
EPSS Percentile 91.8%

Details

Status published
Products (1)
qbik/wingate 3.0
Published Feb 22, 1999
Tracked Since Feb 18, 2026