Stalker Internet Mail Server 1.6 allows a remote attacker to cause a denial of service (crash) via a long HELO command.
Conclusion & alert: CVE-1999-1504 is rated High Exploit Risk (61/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.46%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 19047 | exploit_db | edb | 2001-09-12 | 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 | 2026-06-15 | 5.30% | 2.46% | -2.84% |
| 2 | 2025-07-14 | 3.52% | 5.30% | +1.78% |
| 3 | 2025-03-30 | — | 3.52% | — |
Full EPSS history (7 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 |
|---|---|---|---|
| stalker | stalker_internet_mail_server | 1.6 | cpe:2.3:a:stalker:stalker_internet_mail_server:1.6:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/archive/1/8951 | Vendor Advisory |
| http://www.securityfocus.com/bid/62 | Vendor Advisory |