What’s Vulnerable › Vulnerabilities

CVE-2001-0643

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 11.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2001-09-20 · updated 2026-06-16

Description

Internet Explorer 5.5 does not display the Class ID (CLSID) when it is at the end of the file name, which could allow attackers to trick the user into executing dangerous programs by making it appear that the document is of a safe file type.

Affected products

• Microsoft Internet Explorer 11: 5.5

References

• http://vil.nai.com/vil/virusSummary.asp?virus_k=99048
• http://www.guninski.com/clsidext.html
• http://www.osvdb.org/7858
• http://www.sarc.com/avcenter/venc/data/vbs.postcard%40mm.html
• http://www.securityfocus.com/archive/1/176909
• http://www.securityfocus.com/bid/2612
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6426
• http://vil.nai.com/vil/virusSummary.asp?virus_k=99048
• http://www.guninski.com/clsidext.html
• http://www.osvdb.org/7858
• http://www.sarc.com/avcenter/venc/data/vbs.postcard%40mm.html
• http://www.securityfocus.com/archive/1/176909

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