CVE-2002-0054

Microsoft Windows 2000/Exchange Server 5.5 - Auth Bypass

Title source: llm
STIX 2.1

Description

SMTP service in (1) Microsoft Windows 2000 and (2) Internet Mail Connector (IMC) in Exchange Server 5.5 does not properly handle responses to NTLM authentication, which allows remote attackers to perform mail relaying via an SMTP AUTH command using null session credentials.

Scores

EPSS 0.1254
EPSS Percentile 94.0%

Details

CWE
CWE-294
Status published
Products (2)
microsoft/exchange_server 5.5 (5 CPE variants)
microsoft/windows_2000 (3 CPE variants)
Published Mar 08, 2002
Tracked Since Feb 18, 2026