How severe is CVE-2002-0794?

CVE-2002-0794 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-0794 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-2002-0794?

CVE-2002-0794 affects Freebsd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-0794?

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

When was CVE-2002-0794 published?

CVE-2002-0794 was published on 2002-08-12 and last updated on 2026-06-16.

CVE-2002-0794

CVE-2002-0794 is a medium-severity vulnerability in Freebsd 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: Freebsd
Published: 2002-08-12
Last modified: 2026-06-16

Description

The accept_filter mechanism in FreeBSD 4 through 4.5 does not properly remove entries from the incomplete listen queue when adding a syncache, which allows remote attackers to cause a denial of service (network service availability) via a large number of connection attempts, which fills the queue.

Frequently asked questions

What is CVE-2002-0794?: The accept_filter mechanism in FreeBSD 4 through 4.5 does not properly remove entries from the incomplete listen queue when adding a syncache, which allows remote attackers to cause a denial of service (network service availability) via a large number of connection attempts, which fills the queue.
How severe is CVE-2002-0794?: CVE-2002-0794 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-0794 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-2002-0794?: CVE-2002-0794 affects Freebsd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-0794?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-0794 published?: CVE-2002-0794 was published on 2002-08-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:freebsd:freebsd:4.5:release:*:*:*:*:*:*

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