CVE-2002-0823
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...
CVE-2002-0823 is a high vulnerability (CVSS 7.5) in Microsoft Windows 2000, published August 12, 2002. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 26.2%, the 98th percentile. No source names a fixed version.
- Severity
- 7.5 HighCVSS 2.0, NVD
- Exploit chance
- 26.2%EPSS, 98th percentile
- Exploitation
- None known1 public exploit
- Fixed in
- No fix listedNo source names one
Description
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.
Exploit likelihood
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Microsoft Windows 95/98/2000/NT 4.0 - WinHlp Item Buffer Overflow | 2002-05-27 |
What each source reports
NVD Score used
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.
- Record
CVE-2002-0823- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE ListNo score
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.
- Record
CVE-2002-0823- Updated
- 2026-11-02
EUVDEUVD-2002-0815No score
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.
- Record
EUVD-2002-0815- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-44hf-w7h9-vw7gNo score
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...
Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.
- Record
GHSA-44hf-w7h9-vw7g- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
securityfocus.com/bid/4857
osvdb.org/2991
iss.net/security_center/static/9746.php
support.microsoft.com/default.aspx?scid=kb%3Ben-us%3Bq293338
marc.info?l=bugtraq&m=102822806329440&w=2
nvd.nist.gov/vuln/detail/CVE-2002-0823
github.com/advisories/GHSA-44hf-w7h9-vw7g