Atrium Software Mercur Mail Server 3.20.01 WebView WebMail-Client mail_user memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Atrium Software Mercur Mail Server 3.20.01. The affected element is an unknown function of the component WebView WebMail-Client. The manipulation of the argument mail_user as part of GET Request leads to memory corruption. This vulnerability is referenced as CVE-2000-0239. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Atrium Software Mercur Mail Server 3.20.01 (Mail Server Software) and classified as critical. This issue affects some unknown functionality of the component WebView WebMail-Client. The manipulation of the argument mail_user as part of a GET Request leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the MERCUR WebView WebMail server allows remote attackers to cause a denial of service via a long mail_user parameter in the GET request.

The weakness was published 03/15/2000 by Ussr Labs as not defined advisory (Website). It is possible to read the advisory at ussrback.com. The identification of this vulnerability is CVE-2000-0239. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in Windows Binary. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10346 (MERCUR WebView WebMail Server mail_user Parameter DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 50022 (Atrium Software Mercur WebView WebMail-Client Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4120), Exploit-DB (19810), Tenable (10346), SecurityFocus (BID 1056†) and Vulnerability Center (SBV-487†). Similar entry is available at VDB-15393. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10346
Nessus Name: MERCUR WebView WebMail Server mail_user Parameter DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/15/2000 🔍
03/15/2000 +0 days 🔍
03/15/2000 +0 days 🔍
03/15/2000 +0 days 🔍
03/16/2000 +1 days 🔍
12/22/2002 +1011 days 🔍
06/23/2014 +4201 days 🔍
10/18/2025 +4135 days 🔍

Sourcesinfo

Advisory: ussrback.com
Researcher: Ussr Labs
Status: Confirmed

CVE: CVE-2000-0239 (🔍)
GCVE (CVE): GCVE-0-2000-0239
GCVE (VulDB): GCVE-100-15395
X-Force: 4120
SecurityFocus: 1056 - Atrium Software Mercur WebView WebMail-Client Buffer Overflow Vulnerability
Vulnerability Center: 487 - Atrium Software Mercur WebView WebMail-Client Buffer Overflow Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/24/2014 00:36
Updated: 10/18/2025 02:20
Changes: 06/24/2014 00:36 (72), 05/07/2019 09:15 (2), 02/02/2025 10:51 (19), 10/18/2025 02:20 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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