Buffer overflow in ISMail 1.4.3 and earlier allow remote attackers to execute arbitrary code via long domain names in (1) MAIL FROM or (2) RCPT TO fields.
Conclusion & alert: CVE-2003-1382 is rated Moderate Risk (59.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.90%). Mandatory action: Review affected assets and schedule 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 | 3.14% | 2.90% | -0.24% |
| 2 | 2026-06-07 | 2.84% | 3.14% | +0.30% |
| 3 | 2025-03-30 | — | 2.84% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| instantservers_inc. | ismail | 1.4.3 | cpe:2.3:a:instantservers_inc.:ismail:1.4.3:*:*:*:*:*:*:* |