All vulnerabilities

Servers and applications

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.

Severity
Medium 5.0
Published
15 Oct 2004
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
31% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Observable discrepancy (CWE-203)
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
ProFTPDServers and applications · cpe:a:proftpd:proftpd
  • From 1.2.0 up to 1.2.10

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2004-1602
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2004-1602