How severe is CVE-2004-1602?

CVE-2004-1602 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-1602 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1602?

CVE-2004-1602 affects Proftpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2004-1602?

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

When was CVE-2004-1602 published?

CVE-2004-1602 was published on 2004-10-15 and last updated on 2026-06-16.

CVE-2004-1602

CVE-2004-1602 is a medium-severity vulnerability in Proftpd with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 31% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Proftpd
Published: 2004-10-15
Last modified: 2026-06-16

Description

ProFTPD 1.2.x, including 1.2.8 and 1.2.10, responds in a different amount of time when a given username exists, which allows remote attackers to identify valid usernames by timing the server response.

Frequently asked questions

What is CVE-2004-1602?: ProFTPD 1.2.x, including 1.2.8 and 1.2.10, responds in a different amount of time when a given username exists, which allows remote attackers to identify valid usernames by timing the server response.
How severe is CVE-2004-1602?: CVE-2004-1602 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-1602 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1602?: CVE-2004-1602 affects Proftpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-1602?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1602 published?: CVE-2004-1602 was published on 2004-10-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*

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