CVE-2002-0698

critical

Description

Buffer overflow in Internet Mail Connector (IMC) for Microsoft Exchange Server 5.5 allows remote attackers to execute arbitrary code via an EHLO request from a system with a long name as obtained through a reverse DNS lookup, which triggers the overflow in IMC's hello response.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2002-0690

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-037

http://www.securityfocus.com/bid/5306

http://www.iss.net/security_center/static/9658.php

http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ326322

http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20759

Details

Source: Mitre, NVD

Published: 2002-08-12

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.20257