CVE-2004-0042

CVE-2004-0042 is a medium-severity vulnerability in Beasts Vsftpd 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

vsftpd 1.1.3 generates different error messages depending on whether or not a valid username exists, which allows remote attackers to identify valid usernames.

Frequently asked questions

What is CVE-2004-0042?
vsftpd 1.1.3 generates different error messages depending on whether or not a valid username exists, which allows remote attackers to identify valid usernames.
How severe is CVE-2004-0042?
CVE-2004-0042 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0042 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-2004-0042?
CVE-2004-0042 affects Beasts Vsftpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0042?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0042 published?
CVE-2004-0042 was published on 2004-02-03 and last updated on 2026-06-16.

References

Affected products (1)

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