VULNERABILITY INTELLIGENCE
CVE-2013-6890
CVSS score5 NONE
EPSS probability8.90%
CISA KEVNot currently listed
Published2013-12-23
Last modified2026-06-17
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
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.
Weakness classification
- nvd@nist.gov: CWE-287