The Receive Service in Websense Email Security before 7.1 does not recognize domain extensions in the blacklist, which allows remote attackers to bypass intended access restrictions and send e-mail messages via an SMTP session.
Conclusion & alert: CVE-2009-5131 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.43%). Core evidence: EPSS rose +1.27% over the last day, indicating growing attacker interest. 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 | 0.16% | 1.43% | +1.27% |
| 2 | 2025-08-12 | 0.40% | 0.16% | -0.24% |
| 3 | 2025-03-30 | — | 0.40% | — |
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 |
|---|---|---|---|
| websense | websense_email_security | <= 7.0 | cpe:2.3:a:websense:websense_email_security:*:*:*:*:*:*:*:* |
| websense | websense_email_security | 6.1 | cpe:2.3:a:websense:websense_email_security:6.1:*:*:*:*:*:*:* |
| websense | websense_email_security | 6.1 | cpe:2.3:a:websense:websense_email_security:6.1:sp1:*:*:*:*:*:* |