WinGate Proxy 4.3.0 POP3 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in WinGate Proxy 4.3.0. Affected is an unknown function of the component POP3 Handler. This manipulation causes memory corruption. This vulnerability is tracked as CVE-1999-0494. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in WinGate Proxy 4.3.0 (Firewall Software). Affected by this vulnerability is some unknown processing of the component POP3 Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. The summary by CVE is:

Denial of service in WinGate proxy through a buffer overflow in POP3.

The weakness was disclosed 07/01/1998. This vulnerability is known as CVE-1999-0494. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 10311 (WinGate Proxy POP3 USER Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context r.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Attack attempts may be identified with Snort ID 1866.

The vulnerability is also documented in the databases at X-Force (1847), Tenable (10311) and Vulnerability Center (SBV-16†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10311
Nessus Name: WinGate Proxy POP3 USER Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Snort ID: 1866
Snort Message: PROTOCOL-POP USER overflow attempt
Snort Class: 🔍

Suricata ID: 2101866
Suricata Class: 🔍
Suricata Message: 🔍
SourceFire IPS: 🔍

Timelineinfo

07/01/1998 🔍
07/01/1998 +0 days 🔍
07/01/1998 +0 days 🔍
06/22/1999 +356 days 🔍
10/08/2002 +1204 days 🔍
06/19/2014 +4272 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-1999-0494 (🔍)
GCVE (CVE): GCVE-0-1999-0494
GCVE (VulDB): GCVE-100-14167
X-Force: 1847
Vulnerability Center: 16 - DoS in Wingate Proxy, Medium

Entryinfo

Created: 06/19/2014 16:27
Updated: 04/17/2026 14:02
Changes: 06/19/2014 16:27 (64), 05/04/2019 16:36 (1), 04/17/2026 14:02 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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