Vulnerability Database

299,759

Total vulnerabilities in the database

CVE-2013-6890

denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.

  • Published: Dec 23, 2013
  • Updated: Nov 9, 2025
  • CVE: CVE-2013-6890
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

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