DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an…
Priority LOW 22CWE-16Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01068 65th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-5715
- 2026-10-03 Alias added: GHSA-7qq6-xfqx-v945
References
More Denyhosts vulnerabilities
- TI-2007-04183 DenyHosts 2.6 does not properly parse sshd log files, which allows remote attackers to… CVSS 2.0MEDIUM 6.8
- TI-2006-06065 DenyHosts 2.5 does not properly parse sshd log files, which allows remote attackers to… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2007-5715 · CVE Program
- CVE-2007-5715 · NVD
- FIRST EPSS
- GHSA-7qq6-xfqx-v945 · GitHub Advisory Database · CC BY 4.0
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