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CVE-2007-4323

18
FAUCET Score

CVE-2007-4323 describes a denial-of-service vulnerability in DenyHosts 2.6, where improper parsing of sshd log files allows remote attackers to add arbitrary IP addresses to /etc/hosts.deny. This is achieved by injecting IP address strings into the sshd log via a crafted SSH client protocol version identification. The vulnerability carries a CVSS score of 6.8, indicating a medium severity risk with network access, medium attack complexity, and potential for partial confidentiality, integrity, and availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6CPE matchmatch criteria
cpe:2.3:a:denyhosts:denyhosts:2.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.48%
Probability of exploitation in next 30 days
EPSS Percentile
71.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0148 is in the 44th percentile among its peer group of 19,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.gentoo.org / show_bug.cgi
osvdb.org / 42482
bugzilla.redhat.com / bugzilla/show_bug.cgi
secunia.com / advisories/27254
security.gentoo.org / glsa/glsa-200710-14.xml
exchange.xforce.ibmcloud.com / vulnerabilities/37199
ossec.net / en/attacking-loganalysis.html
securityfocus.com / bid/26061