CVE-2004-0656

CVE-2004-0656 is a medium-severity vulnerability in Pureftpd 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

Description

The accept_client function in PureFTPd 1.0.18 and earlier allows remote attackers to cause a denial of service by exceeding the maximum number of connections.

Frequently asked questions

What is CVE-2004-0656?
The accept_client function in PureFTPd 1.0.18 and earlier allows remote attackers to cause a denial of service by exceeding the maximum number of connections.
How severe is CVE-2004-0656?
CVE-2004-0656 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0656 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0656?
CVE-2004-0656 primarily affects Pureftpd. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0656?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0656 published?
CVE-2004-0656 was published on 2004-08-06 and last updated on 2026-06-16.

References

Affected products (18)