CVE-2002-0693 in the critical feed json
Buffer overflow in the HTML Help ActiveX Control (hhctrl.ocx) in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.…
published 2002-10-05 24 y ago modified 2026-06-16 4 mo ago also EUVD-2002-0685
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 31.3%
- EPSS 31.3% chance of exploitation in 30 days, percentile 98%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-21902)
Exploit prediction
31.34% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-21902 Microsoft Windows XP/2000/NT 4.0 - Help Facility ActiveX Control Buffer Overflow remote, 2002-10-07
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2002/ms02-055
vendor-advisory
-
iss.net
/security_center/static/10253.php
vdb-entry, vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A374
vdb-entry, signature
-
securityfocus.com
/bid/5874
vdb-entry
-
marc.info
/?l=bugtraq&m=103365849505409&w=2
mailing-list
-
marc.info
/?l=bugtraq&m=103435279404182&w=2
mailing-list
-
marc.info
/?l=bugtraq&m=103419115517344&w=2
mailing-list
Sources
- CVE List CVE-2002-0693
- NVD CVE-2002-0693
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