Vulnerability Report

CVE-2000-1002

Title: CommuniGate Pro POP3 username/password error differences allow user enumeration

Other

Proof Of Concept

PoC Available for CVE-2000-1002

CWE Category NVD-CWE-noinfo

Published Date Dec 11, 2000

Modified Date Jun 16, 2026

Exploit Status Available

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

7.49%

Vulnerability Summary

CVE-2000-1002: POP3 daemon in Stalker CommuniGate Pro 3.3.2 generates different error messages for invalid usernames versus invalid passwords, which allows remote attackers to determine valid email addresses on the server for SPAM attacks.

Impacted Vendors

stalker 1

communigate 1

Reference Links

http://www.securityfocus.com/archive/1/139523 http://www.securityfocus.com/bid/1792 https://exchange.xforce.ibmcloud.com/vulnerabilities/5363 http://www.securityfocus.com/archive/1/139523 http://www.securityfocus.com/bid/1792 https://exchange.xforce.ibmcloud.com/vulnerabilities/5363

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2000-1002 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/20175

View Code

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

December 11, 2000 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected Stack

No specific products linked.