CVE-2001-1243

Name: CVE-2001-1243
Creator: NVD / NIST
Published: 2001-07-04T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 63.19%

Last modified Jun 16, 2026

CVE-2001-1243 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 63.19% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

63.19%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Internet Information Server	4.0
Microsoft	Internet Information Services	5.0

References

http://www.iss.net/security_center/static/6800.phpVendor Advisory
http://www.securityfocus.com/archive/1/194919
http://www.securityfocus.com/bid/2973Exploit, Patch, Vendor Advisory
http://www.iss.net/security_center/static/6800.phpVendor Advisory
http://www.securityfocus.com/archive/1/194919
http://www.securityfocus.com/bid/2973Exploit, Patch, Vendor Advisory

Timeline

Published: Jul 4, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-1243?

How severe is CVE-2001-1243?

Severity scoring for CVE-2001-1243 is pending analysis. The EPSS model estimates a 63.19% probability of exploitation in the next 30 days.

How do I fix CVE-2001-1243?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2001-1243?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST