Buffer overflow in IP-Switch IMail and Seattle Labs Slmail 2.6 packages using a long VRFY command, causing a denial of service and possibly remote access.
Conclusion & alert: CVE-1999-0231 is rated Moderate Risk (44.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.38%). 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 | 0.50% | 1.38% | +0.88% |
| 2 | 2025-03-30 | 0.55% | 0.50% | -0.06% |
| 3 | 2025-03-29 | — | 0.55% | — |
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 | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-1999-0231: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-1999-0231 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| seattle_lab_software | slmail | 2.6 | cpe:2.3:a:seattle_lab_software:slmail:2.6:*:*:*:*:*:*:* |