Microsoft Windows XP Help Center helpctr.exe memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Windows XP. This affects an unknown function of the file helpctr.exe of the component Help Center. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2001-0909. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Microsoft Windows XP (Operating System) and classified as critical. This vulnerability affects an unknown part of the file helpctr.exe of the component Help Center. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented 11/21/2001 (Website). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability was named CVE-2001-0909. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $100k and more.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7605), Exploit-DB (22232) and SecurityFocus (BID 6802†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/21/2001 🔍
11/21/2001 +0 days 🔍
11/21/2001 +0 days 🔍
07/10/2014 +4614 days 🔍
02/02/2025 +3860 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: marc.theaimsgroup.com
Status: Confirmed

CVE: CVE-2001-0909 (🔍)
GCVE (CVE): GCVE-0-2001-0909
GCVE (VulDB): GCVE-100-17608
X-Force: 7605 - Microsoft Windows XP helpctr.exe buffer overflow
SecurityFocus: 6802 - Microsoft Windows XP HCP URI Buffer Overflow Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/10/2014 12:43
Updated: 02/02/2025 10:28
Changes: 07/10/2014 12:43 (49), 04/10/2019 11:20 (6), 02/02/2025 10:28 (27)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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