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Tool Directory

CVE-2001-1243

MediumPublished

Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cause a denial of service (crash) via (1) creating...

Published: May 3, 2002
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Jul 4, 2001

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS probability estimate

70.5%

High · next 30 days

Percentile: 99.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cause a denial of service (crash) via (1) creating an ASP program that uses Scripting.FileSystemObject to open a file with an MS-DOS device name, or (2) remotely injecting the device name into ASP programs that internally use Scripting.FileSystemObject.

Sources

Microsoft IIS 4.0/5.0 - Device File Local Denial of ServiceExploit
VIPER_SV · windows · Jul 4, 2001
Microsoft IIS 4.0/5.0 - Device File Remote Denial of ServiceExploit
VIPER_SV · windows · Jul 4, 2001

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