Heap-based buffer overflow in the HtmlHelp program (hh.exe) in HTML Help for Microsoft…
Priority HIGH 72Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.45314 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 54
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avaya:ip600_media_servers:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* | all versions | Vulnerable | Avaya |
| cpe:2.3:o:avaya:modular_messaging_message_storage_server:s3400:*:*:*:*:*:*:* | s3400 | Vulnerable | Avaya |
| cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:* | enterprise | Vulnerable | Microsoft |
- cpe:2.3:a:avaya:ip600_media_servers:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Avaya
- cpe:2.3:o:avaya:modular_messaging_message_storage_server:s3400:*:*:*:*:*:*:* Versions s3400 Vulnerable ·Avaya
- cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:* Versions enterprise Vulnerable ·Microsoft
Show 44 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:*:*:*:*:*:*:* | enterprise_64-bit | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:r2:*:datacenter_64-bit:*:*:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:* | standard | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:* | web | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_me:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:*:enterprise_server:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:*:terminal_server:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:*:workstation:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp1:enterprise_server:*:*:*:*:* | 4.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:* | 4.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp1:terminal_server:*:*:*:*:* | 4.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp1:workstation:*:*:*:*:* | 4.0 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp2:enterprise_server:*:*:*:*:* | 4.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:* | 4.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp2:terminal_server:*:*:*:*:* | 4.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp2:workstation:*:*:*:*:* | 4.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp3:enterprise_server:*:*:*:*:* | 4.0 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:* | 4.0 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp3:terminal_server:*:*:*:*:* | 4.0 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp3:workstation:*:*:*:*:* | 4.0 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp4:enterprise_server:*:*:*:*:* | 4.0 sp4 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:* | 4.0 sp4 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp4:terminal_server:*:*:*:*:* | 4.0 sp4 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp4:workstation:*:*:*:*:* | 4.0 sp4 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp5:enterprise_server:*:*:*:*:* | 4.0 sp5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp5:server:*:*:*:*:* | 4.0 sp5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp5:terminal_server:*:*:*:*:* | 4.0 sp5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp5:workstation:*:*:*:*:* | 4.0 sp5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:enterprise_server:*:*:*:*:* | 4.0 sp6 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:server:*:*:*:*:* | 4.0 sp6 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:terminal_server:*:*:*:*:* | 4.0 sp6 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6:workstation:*:*:*:*:* | 4.0 sp6 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:enterprise_server:*:*:*:*:* | 4.0 sp6a | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:* | 4.0 sp6a | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:workstation:*:*:*:*:* | 4.0 sp6a | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp1:home:*:*:*:*:* | all versions | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:*:*:*:*:*:*:* Versions enterprise_64-bit Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:r2:*:datacenter_64-bit:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:* Versions standard Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:* Versions web Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_me:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:*:enterprise_server:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:*:terminal_server:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:*:workstation:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:enterprise_server:*:*:*:*:* Versions 4.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:* Versions 4.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:terminal_server:*:*:*:*:* Versions 4.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:workstation:*:*:*:*:* Versions 4.0 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:enterprise_server:*:*:*:*:* Versions 4.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:* Versions 4.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:terminal_server:*:*:*:*:* Versions 4.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:workstation:*:*:*:*:* Versions 4.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:enterprise_server:*:*:*:*:* Versions 4.0 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:* Versions 4.0 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:terminal_server:*:*:*:*:* Versions 4.0 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:workstation:*:*:*:*:* Versions 4.0 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:enterprise_server:*:*:*:*:* Versions 4.0 sp4 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:* Versions 4.0 sp4 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:terminal_server:*:*:*:*:* Versions 4.0 sp4 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:workstation:*:*:*:*:* Versions 4.0 sp4 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:enterprise_server:*:*:*:*:* Versions 4.0 sp5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:server:*:*:*:*:* Versions 4.0 sp5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:terminal_server:*:*:*:*:* Versions 4.0 sp5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:workstation:*:*:*:*:* Versions 4.0 sp5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:enterprise_server:*:*:*:*:* Versions 4.0 sp6 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:server:*:*:*:*:* Versions 4.0 sp6 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:terminal_server:*:*:*:*:* Versions 4.0 sp6 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:workstation:*:*:*:*:* Versions 4.0 sp6 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:enterprise_server:*:*:*:*:* Versions 4.0 sp6a Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:* Versions 4.0 sp6a Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:workstation:*:*:*:*:* Versions 4.0 sp6a Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp1:home:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0201
- 2026-10-03 Alias added: GHSA-rfqx-p859-5rqq
References
Sources
- CVE-2004-0201 · CVE Program
- CVE-2004-0201 · NVD
- FIRST EPSS
- GHSA-rfqx-p859-5rqq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences