CVE-2009-5121

CVE-2009-5121 is a medium-severity vulnerability in Websense Websense Email Security with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

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.

Frequently asked questions

What is 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.
How severe is CVE-2009-5121?
CVE-2009-5121 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-5121 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-5121?
CVE-2009-5121 affects Websense Websense Email Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-5121?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-5121 published?
CVE-2009-5121 was published on 2012-08-23 and last updated on 2026-06-16.

References

Affected products (1)

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