Microsoft Outlook 2003 and Outlook Web Access (OWA) 2003 do not properly display comma separated addresses in the From field in an e-mail message, which could allow remote attackers to spoof e-mail addresses.
Conclusion & alert: CVE-2005-1052 is rated Moderate Risk (55.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 9.38%, 95th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.22% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 7.15% | 9.38% | +2.22% |
| 2 | 2025-05-11 | 8.50% | 7.15% | -1.34% |
| 3 | 2025-03-30 | — | 8.50% | — |
Full EPSS history (11 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 |
|---|---|---|---|
| microsoft | outlook | 2003 | cpe:2.3:a:microsoft:outlook:2003:*:*:*:*:*:*:* |
| microsoft | outlook_web_access | 2003 | cpe:2.3:a:microsoft:outlook_web_access:2003:*:*:*:*:*:*:* |