Microsoft Exchange 2000 User Account EUSR_EXSTOREEVENT hard-coded credentials

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Exchange 2000. This issue affects some unknown processing of the component User Account. The manipulation of the argument EUSR_EXSTOREEVENT leads to hard-coded credentials. This vulnerability is referenced as CVE-2000-1139. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Exchange 2000 (Groupware Software) and classified as critical. This issue affects some unknown processing of the component User Account. The manipulation of the argument EUSR_EXSTOREEVENT with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The installation of Microsoft Exchange 2000 before Rev. A creates a user account with a known password, which could allow attackers to gain privileges, aka the "Exchange User Account" vulnerability.

The weakness was published 01/09/2001 with Microsoft (Website). It is possible to read the advisory at microsoft.com. The identification of this vulnerability is CVE-2000-1139. 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 of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 70016 (Microsoft Exchange 2000 Server EUSER_EXSTOREEVENT Account Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5537), SecurityFocus (BID 1958†) and Vulnerability Center (SBV-3774†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/16/2000 🔍
01/09/2001 +54 days 🔍
01/09/2001 +0 days 🔍
01/09/2001 +0 days 🔍
02/16/2004 +1133 days 🔍
07/02/2014 +3789 days 🔍
10/11/2025 +4119 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: microsoft.com
Organization: Microsoft
Status: Confirmed

CVE: CVE-2000-1139 (🔍)
GCVE (CVE): GCVE-0-2000-1139
GCVE (VulDB): GCVE-100-16295
X-Force: 5537
SecurityFocus: 1958 - Microsoft Exchange 2000 Server EUSR_EXSTOREEVENT Account Vulnerability
Vulnerability Center: 3774 - [MS00-088] Microsoft Exchange Server 2000 Default User Account Enables Privilege Elevation, High

Entryinfo

Created: 07/02/2014 17:07
Updated: 10/11/2025 19:39
Changes: 07/02/2014 17:07 (57), 05/19/2019 22:03 (4), 10/11/2025 19:39 (20)
Complete: 🔍
Cache ID: 216::103

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

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