CVE-2002-0823

Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...

7.5 HighPublic exploit

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 97th percentile. No source names a fixed version.

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

26.2%Down 18.5 points since Jun 1, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2002-0823
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2002-0823
Updated: 2026-11-02

EUVDEUVD-2002-0815 No score

Record: EUVD-2002-0815
Updated: 2026-11-03

GitHub AdvisoriesGHSA-44hf-w7h9-vw7g No score

Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...

Record: GHSA-44hf-w7h9-vw7g
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Microsoft Windows 95/98/2000/NT 4.0 - WinHlp Item Buffer Overflow	2002-05-27

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, Exploit-DB, GitHub Advisories, NVD