Microsoft Outlook Express 5.5 and 6 allows attackers to cause a denial of service (application crash) via a malformed e-mail header.
Conclusion & alert: CVE-2004-0215 is rated Moderate Risk (49/100): CVSS Medium severity, with high exploitation likelihood (EPSS 39.07%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-03-19 | 44.46% | 39.07% | -5.39% |
| 2 | 2025-12-12 | 47.74% | 44.46% | -3.28% |
| 3 | 2025-11-18 | — | 47.74% | — |
Full EPSS history (13 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 | outlook_express | 6.0 | cpe:2.3:a:microsoft:outlook_express:6.0:*:*:*:*:*:*:* |
| avaya | definity_one_media_server | — | cpe:2.3:h:avaya:definity_one_media_server:*:*:*:*:*:*:*:* |
| avaya | s8100 | — | cpe:2.3:h:avaya:s8100:*:*:*:*:*:*:*:* |
| avaya | modular_messaging_message_storage_server | s3400 | cpe:2.3:o:avaya:modular_messaging_message_storage_server:s3400:*:*:*:*:*:*:* |