CVE & CISA-KEV CatalogNVD
CVE-2002-0054
HIGHEPSS 97th pctl7.5
CVSS v2
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.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
22.33%probability of exploitation in 30 days
97thpercentile
Very high risk: more likely to be exploited than 97% of all known CVEs.
References
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.