HOMEVULNERABILITIESCVE-2004-0201
CRITICAL

CVE-2004-0201

NVD-CWE-OtherPublished: August 6, 2004· Updated: Jun 16, 2026

10.0
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2004-0201 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

avaya4 product(s)
ip600 media serversdefinity one media servers8100modular messaging message storage server
Microsoft7 product(s)
windows 2000windows 2003 serverwindows 98windows 98sewindows mewindows ntwindows xp
Source: NVD CPE · 15 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (18)

Quick Facts

CVE IDCVE-2004-0201
CVSS Score10.0 / 10
SeverityCRITICAL
CISA KEVNo
Affected2 vendor(s)
PublishedAug 6, 2004

Related CVEs (NVD-CWE-Other)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2004-0201 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.