CVE-2002-0823
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 26.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 26.17% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 27 May 2002
- CISA KEV
- Not listed
- Affected
- microsoft/windows help · microsoft/windows 2000
- Source
- cve@mitre.org
EPSS 26.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://marc.info/?l=bugtraq&m=102822806329440&w=2
- http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3Bq293338
- http://www.iss.net/security_center/static/9746.php
- http://www.osvdb.org/2991
- http://www.securityfocus.com/bid/4857
- http://marc.info/?l=bugtraq&m=102822806329440&w=2
- http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3Bq293338
- http://www.iss.net/security_center/static/9746.php
- http://www.osvdb.org/2991
- http://www.securityfocus.com/bid/4857
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.