CVE-2004-0201: n/a vulnerability

CVE-2004-0201: Heap-based buffer overflow in the HtmlHelp program (hh.exe) in HTML Help for Microsoft Windows 98, Me, NT 4...

Heap-based buffer overflow in the HtmlHelp program (hh.exe) in HTML Help for Microsoft Windows 98, Me, NT 4.0, 2000, XP, and Server 2003 allows remote attackers to execute arbitrary commands via a .CHM file with a large length field, a different vulnerability than CVE-2003-1041.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:10 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Microsoft HTML Help flaw where a specially crafted .CHM help file can corrupt memory in hh.exe and allow arbitrary commands. Business risk is mainly legacy Windows systems that still process CHM files. The bundle has no KEV listing, so active exploitation is not established here. Exposure is most likely on legacy or embedded Windows hosts that retain HTML Help and can receive or open CHM files. Modern supported Windows versions are not identified as affected in the provided bundle. Prioritize if legacy Windows remains in business workflows, industrial systems, or user workstations. Otherwise, handle through legacy-risk reduction and asset hygiene rather than emergency response. Mitigation focus: Apply Microsoft guidance and updates from MS04-023 where applicable.; Retire or isolate affected legacy Windows systems where patching is not practical.; Restrict handling of untrusted CHM files on legacy hosts..

Prepared: Jun 30, 2026, 04:50 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

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 14, 2004, 04:00 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

7Source 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
oval:org.mitre.oval:def:2155CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:1530CVE reference · vdb-entry, signature
oval:org.mitre.oval:def:1503CVE reference · vdb-entry, signature
MS04-023CVE reference · vendor-advisory, x_refsource_MS
oval:org.mitre.oval:def:3179CVE reference · vdb-entry, signature
win-htmlhelp-execute-code(16586)CVE reference · vdb-entry, x_refsource_XF

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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