CVE-2001-1243: n/a vulnerability

CVE-2001-1243: Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cau...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 04:51 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old denial-of-service flaw affecting Microsoft IIS 4.0 and 5.0 ASP handling. If a vulnerable legacy server processes certain MS-DOS device-name input through Scripting.FileSystemObject, the web service can crash. The source bundle does not provide a severity score or confirmed patch details. Exposure is mainly legacy IIS 4.0 or 5.0 systems running classic ASP code that uses Scripting.FileSystemObject. Modern IIS deployments are not identified in the supplied sources. Organizations should treat any internet-facing legacy ASP estate as the main scoping target. Prioritize only if the organization still runs IIS 4.0 or 5.0, especially on exposed business services. For most modern environments, urgency is low after confirming those legacy systems are absent. Unsupported legacy web servers should be treated as a broader operational risk. Mitigation focus: Identify and prioritize any remaining IIS 4.0 or 5.0 systems.; Check Microsoft or vendor guidance for supported remediation details.; Replace, retire, or isolate unsupported legacy IIS hosts where feasible..

Prepared: Jul 1, 2026, 07:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 3, 2002, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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