CVE-2001-0909
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote...
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.
- Record
CVE-2001-0909- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.
- Record
CVE-2001-0909- Updated
- 2026-11-02
EUVDEUVD-2001-0892 No score
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.
- Record
EUVD-2001-0892- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c64x-2qg4-rpqq No score
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote...
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.
- Record
GHSA-c64x-2qg4-rpqq- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Microsoft Windows XP - HCP URI Buffer Overflow | 2001-11-21 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2001-0909 is a high vulnerability (CVSS 7.5) in Microsoft Windows Xp, published November 21, 2001. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 19.7%, the 97th percentile. No source names a fixed version.