Internet Explorer in Windows XP SP2, and other versions including 5.01 and 5.5, allows remote attackers to install arbitrary programs via a web page that uses certain styles and the AnchorClick behavior, popup windows, and drag-and-drop capabilities to drop the program in the local startup folder, as demonstrated by "wottapoop.html".
Conclusion & alert: CVE-2004-0839 is rated High Exploit Risk (73.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 45.91%, 98th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.90% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-20 | 42.01% | 45.91% | +3.90% |
| 2 | 2025-12-28 | 38.83% | 42.01% | +3.18% |
| 3 | 2025-12-27 | — | 38.83% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| avaya | ip600_media_servers | — | cpe:2.3:a:avaya:ip600_media_servers:*:*:*:*:*:*:*:* |
| microsoft | ie | 6.0 | cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:* |
| microsoft | ie | 6.0 | cpe:2.3:a:microsoft:ie:6.0:sp2:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.0.1 | cpe:2.3:a:microsoft:internet_explorer:5.0.1:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.0.1 | cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp1:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.0.1 | cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp2:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.0.1 | cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp3:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.0.1 | cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp4:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.5 | cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.5 | cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.5 | cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:* |
| microsoft | internet_explorer | 6.0 | cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:* |
| avaya | definity_one_media_server | — | cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* |
| avaya | s3400 | — | cpe:2.3:h:avaya:s3400:*:*:*:*:*:*:*:* |
| avaya | s8100 | — | cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* |
| nortel | ip_softphone_2050 | — | cpe:2.3:a:nortel:ip_softphone_2050:*:*:*:*:*:*:*:* |
| nortel | mobile_voice_client_2050 | — | cpe:2.3:a:nortel:mobile_voice_client_2050:*:*:*:*:*:*:*:* |
| nortel | optivity_telephony_manager | — | cpe:2.3:a:nortel:optivity_telephony_manager:*:*:*:*:*:*:*:* |
| nortel | symposium_web_centre_portal | — | cpe:2.3:a:nortel:symposium_web_centre_portal:*:*:*:*:*:*:*:* |
| nortel | symposium_web_client | — | cpe:2.3:a:nortel:symposium_web_client:*:*:*:*:*:*:*:* |
| avaya | modular_messaging_message_storage_server | 1.1 | cpe:2.3:o:avaya:modular_messaging_message_storage_server:1.1:*:*:*:*:*:*:* |
| avaya | modular_messaging_message_storage_server | 2.0 | cpe:2.3:o:avaya:modular_messaging_message_storage_server:2.0:*:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* |
| microsoft | windows_2003_server | enterprise | cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:* |
| microsoft | windows_2003_server | enterprise_64-bit | cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:*:*:*:*:*:*:* |
| microsoft | windows_2003_server | r2 | cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:* |
| microsoft | windows_2003_server | r2 | cpe:2.3:o:microsoft:windows_2003_server:r2:*:datacenter_64-bit:*:*:*:*:* |
| microsoft | windows_2003_server | standard | cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:* |
| microsoft | windows_2003_server | web | cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:* |
| microsoft | windows_98 | — | cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:* |
| microsoft | windows_98se | — | cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:* |
| microsoft | windows_me | — | cpe:2.3:o:microsoft:windows_me:*:*:*:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:*:home:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:*:media_center:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:gold:professional:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp1:home:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp1:media_center:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp2:home:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp2:media_center:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp2:tablet_pc:*:*:*:*:* |