Premium Antispam in Symantec Mail Security for Domino Server 5.1.x before 5.1.2.28 does not filter certain SMTP address formats, which allows remote attackers to use the product as a spam relay.
Conclusion & alert: CVE-2006-5545 is rated Moderate Risk (45.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.76%). 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 | 2025-06-04 | 0.74% | 0.76% | +0.02% |
| 2 | 2025-06-01 | 0.76% | 0.74% | -0.02% |
| 3 | 2025-05-05 | — | 0.76% | — |
Full EPSS history (27 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-2006-5545: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5545 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| symantec | mail_security | 5.1.0 | cpe:2.3:a:symantec:mail_security:5.1.0:*:domino:*:*:*:*:* |