CVE-2000-0400: n/a vulnerability

CVE-2000-0400: The Microsoft Active Movie ActiveX Control in Internet Explorer 5 does not restrict which file types can be...

The Microsoft Active Movie ActiveX Control in Internet Explorer 5 does not restrict which file types can be downloaded, which allows an attacker to download any type of file to a user's system by encoding it within an email message or news post.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 05:14 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2000-0400 concerns Internet Explorer 5 handling of the Microsoft Active Movie ActiveX Control. The CVE says an attacker could cause arbitrary file types to be downloaded through encoded email or news-post content. The record is old and sparse, so urgency mainly applies to legacy systems still using IE5, ActiveX, or related mail/news rendering paths. Exposure is most plausible in legacy Windows environments where Internet Explorer 5, ActiveX, or old mail/news clients render active content. Modern supported browsers are not identified as affected in the provided sources. Prioritize only if the organization still runs IE5-era systems or legacy ActiveX workflows. For normal modern environments, the business priority is low but should be captured in legacy-technology risk tracking. Mitigation focus: Identify and retire Internet Explorer 5 usage wherever possible.; Disable or restrict ActiveX controls on any retained legacy systems.; Prevent old mail/news clients from rendering active content automatically..

Prepared: Jul 12, 2026, 04:42 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: Jun 15, 2000, 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

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1Source links

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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

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