How severe is CVE-2002-1433?

CVE-2002-1433 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1433 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1433?

CVE-2002-1433 affects Kerio Kerio Mailserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1433?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-1433 published?

CVE-2002-1433 was published on 2003-04-11 and last updated on 2026-06-16.

CVE-2002-1433

CVE-2002-1433 is a medium-severity vulnerability in Kerio Kerio Mailserver 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.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Kerio Kerio Mailserver
Published: 2003-04-11
Last modified: 2026-06-16

Description

Kerio MailServer 5.0 allows remote attackers to cause a denial of service (hang) via SYN packets to the supported network services.

Frequently asked questions

What is CVE-2002-1433?: Kerio MailServer 5.0 allows remote attackers to cause a denial of service (hang) via SYN packets to the supported network services.
How severe is CVE-2002-1433?: CVE-2002-1433 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1433 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1433?: CVE-2002-1433 affects Kerio Kerio Mailserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1433?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1433 published?: CVE-2002-1433 was published on 2003-04-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:kerio:kerio_mailserver:5.0:*:*:*:*:*:*:*

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