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CVSS v3.1
N/A
EPSS
8.90%
Published
Dec 23, 2013
Modified
Apr 28, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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.
Weaknesses (CWE)
Affected Products (5)
References (8)