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Vulnerability record · CVE-2009-5121 · published 23 August 2012

CVE-2009-5121: Websense email security permissions and access controls vulnerability

Websense · Websense Email Security

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.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 32.4% CWE-264 · Permissions and access controls
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.websense.com/support/article/t-kbarticle/Hotfix-4-for-Websense-Email-Security-v7-1 Vendor Advisory
http://www.websense.com/support/article/t-kbarticle/Hotfix-4-for-Websense-Email-Security-v7-1 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-5121), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.