Summary
generated automatically from NVD dataThe SMTP service in Microsoft Windows 2000 and the Internet Mail Connector (IMC) in Exchange Server 5.5 mishandle responses to NTLM authentication. A remote attacker can send an SMTP AUTH command with null session credentials and use the server for mail relaying. The flaw is associated with CWE-294 and has a CVSS v2.0 score of 7.5 (HIGH).
NVD 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.
EPSS · FIRST.org
22.4%probability of exploitation in the next 30 days
Higher than 97% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-29, recomputed daily by FIRST.org.
CVSS v2.0 Score
Information
- Published
- 8 mars 2002
- Updated
- 16 juin 2026
- Status
- Modified
- Source
- cve@mitre.org
Affected products
Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.
Weaknesses (CWE)
References (6)
- http://marc.info/?l=bugtraq&m=101501580409373&w=2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/4205PatchThird Party AdvisoryVDB Entry
- http://marc.info/?l=bugtraq&m=101501580409373&w=2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/4205PatchThird Party AdvisoryVDB Entry
Similar CVEs
Other vulnerabilities of type CWE-294
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