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CVE-2007-5715

MEDIUM · CVSS 4.3EPSS 1.1%EU EUVD

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.

Key facts

CVSS score
4.3 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-16
EPSS score
1.1% (65th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2007-5686)
Published
October 30, 2007
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-5686 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • denyhosts / denyhosts

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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