What’s Vulnerable › Vulnerabilities

CVE-2001-0909

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 19.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2001-11-21 · updated 2026-06-16

Description

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.

Affected products

• Microsoft Windows XP Service Pack 3: all versions

References

• http://marc.info/?l=bugtraq&m=100638955422011&w=2
• http://www.securityfocus.com/bid/6802
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7605
• http://marc.info/?l=bugtraq&m=100638955422011&w=2
• http://www.securityfocus.com/bid/6802
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7605

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