CVE-2009-5121

Websense Email Security 7.1 before Hotfix 4 allows remote attackers to bypass the sender-based blacklist by using the 8BITMIME EHLO keyword in the SMTP session.

Published: 2012-08-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-5121 is rated Moderate Risk (43.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.22%). EPSS rose +1.06% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-5121

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% 1.22% +1.06%
2 2025-08-09 0.40% 0.16% -0.24%
3 2025-03-30 — 0.40% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-5121

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-5121

Affected software / configurations for CVE-2009-5121

Vendor Product Version Raw CPE
websense websense_email_security 7.1 cpe:2.3:a:websense:websense_email_security:7.1:*:*:*:*:*:*:*

References for CVE-2009-5121

cvelogic Threat Intelligence