CVE-2001-0643

Microsoft Internet Explorer 5.5 - CLSID File Execution

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2001-04-17 First Exploit
2001-08-06 CVE Reserved
2001-09-20 CVE Published
2024-08-08 CVE Updated
2025-02-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (8)

URL	Tag	Source
http://www.guninski.com/clsidext.html	X_refsource_misc
http://www.osvdb.org/7858	Vdb Entry
http://www.sarc.com/avcenter/venc/data/vbs.postcard%40mm.html	X_refsource_misc
http://www.securityfocus.com/bid/2612	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/6426	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/20774	2001-04-17
http://vil.nai.com/vil/virusSummary.asp?virus_k=99048	2024-08-08
http://www.securityfocus.com/archive/1/176909	2024-08-08

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Internet Explorer Search vendor "Microsoft" for product "Internet Explorer"				5.5 Search vendor "Microsoft" for product "Internet Explorer" and version "5.5"		-		Affected