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Vulnerability record · CVE-2002-0155 · published 29 May 2002

CVE-2002-0155: Microsoft msn chat control vulnerability

Microsoft · Msn Chat Control

Buffer overflow in Microsoft MSN Chat ActiveX Control, as used in MSN Messenger 4.5 and 4.6, and Exchange Instant Messenger 4.5 and 4.6, allows remote attackers to execute arbitrary code via a long ResDLL parameter in the MSNChat OCX.

7.5 CVSS 2.0 High EPSS 24% · top 2.2%
7.5CVSS 2.0 base score
24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in Microsoft MSN Chat ActiveX Control, as used in MSN Messenger 4.5 and 4.6, and Exchange Instant Messenger 4.5 and 4.6, allows remote attackers to execute arbitrary code via a long ResDLL parameter in the MSNChat OCX.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=102089960531919&w=2
http://www.cert.org/advisories/CA-2002-13.html US Government Resource
http://www.iss.net/security_center/static/9041.php
http://www.securityfocus.com/bid/4707
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-022
http://marc.info/?l=bugtraq&m=102089960531919&w=2
http://www.cert.org/advisories/CA-2002-13.html US Government Resource
http://www.iss.net/security_center/static/9041.php
http://www.securityfocus.com/bid/4707
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-022

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2002-0155), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.