CVE-2001-0909 in the critical feed json
Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long…
published 2001-11-21 24 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0892
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 19.7%
- EPSS 19.7% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- First public exploit (EDB-22232)
- Published
Exploit prediction
19.74% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-22232 Microsoft Windows XP - HCP URI Buffer Overflow dos, 2001-11-21
- securityfocus.com http://www.securityfocus.com/bid/6802 referenced PoC, tagged "exploit" by a source, unverified
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
-
securityfocus.com
/bid/6802
vdb-entry, exploit, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/7605
vdb-entry
-
marc.info
/?l=bugtraq&m=100638955422011&w=2
mailing-list
Sources
- CVE List CVE-2001-0909
- NVD CVE-2001-0909
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.