What’s Vulnerable › Vulnerabilities

CVE-2002-0693

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 31.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2002-10-10 · updated 2026-06-16

Description

Buffer overflow in the HTML Help ActiveX Control (hhctrl.ocx) in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP allows remote attackers to execute code via (1) a long parameter to the Alink function, or (2) script containing a long argument to the showHelp function.

Affected products

• Microsoft Windows 2000: all versions
• Microsoft Windows 2000 Terminal Services: all versions
• Microsoft Windows 98: all versions
• Microsoft Windows 98Se: all versions
• Microsoft Windows Me: all versions
• Microsoft Windows Nt: 4.0, 4.0-sp1, 4.0-sp2, 4.0-sp3, 4.0-sp4, 4.0-sp5 (+2)
• Microsoft Windows XP Service Pack 3: all versions

References

• http://marc.info/?l=bugtraq&m=103365849505409&w=2
• http://marc.info/?l=bugtraq&m=103419115517344&w=2
• http://marc.info/?l=bugtraq&m=103435279404182&w=2
• http://www.iss.net/security_center/static/10253.php
• http://www.securityfocus.com/bid/5874
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-055
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A374
• http://marc.info/?l=bugtraq&m=103365849505409&w=2
• http://marc.info/?l=bugtraq&m=103419115517344&w=2
• http://marc.info/?l=bugtraq&m=103435279404182&w=2
• http://www.iss.net/security_center/static/10253.php
• http://www.securityfocus.com/bid/5874

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