CVE-2001-0664: n/a vulnerability

CVE-2001-0664: Internet Explorer 5.5 and 5.01 allows remote attackers to bypass security restrictions via malformed URLs t...

Internet Explorer 5.5 and 5.01 allows remote attackers to bypass security restrictions via malformed URLs that contain dotless IP addresses, which causes Internet Explorer to process the page in the Intranet Zone, which may have fewer security restrictions, aka the "Zone Spoofing vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 04:30 UTC (UTC+00:00)

Security readout for executives and security teams

This old Internet Explorer flaw could make a hostile website appear to belong to the safer Intranet Zone. That zone may allow weaker browser restrictions, creating business risk only where legacy IE 5.01 or 5.5 is still used. Exposure is limited to environments retaining Internet Explorer 5.01 or 5.5, especially legacy workstations, kiosks, lab systems, or intranet-only applications. The provided data does not identify affected operating systems, default configurations, or later browser versions. Low urgency for modern environments, but high priority for any business process still dependent on IE 5.x. The key action is confirming whether the legacy browser exists in the estate. Mitigation focus: Inventory systems for Internet Explorer 5.01 or 5.5 usage.; Review and apply Microsoft MS01-051 guidance where applicable.; Remove or isolate legacy IE systems from untrusted web content..

Prepared: Jul 1, 2026, 07:46 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: Mar 9, 2002, 05:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source 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
ie-incorrect-security-zone(7258)CVE reference · vdb-entry, x_refsource_XF
MS01-051CVE reference · vendor-advisory, x_refsource_MS

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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