VULNERABILITY INTELLIGENCE
CVE-2007-5715
CVSS score4.3 MEDIUM
EPSS probability1.07%
CISA KEVNot currently listed
Published2007-10-30
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:P/A:N
Description
DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid detection and blocking when making invalid login attempts with a username not present in AllowUsers, as demonstrated by the root username, a different vulnerability than CVE-2007-4323.