CVE-2005-2666
LOWDescription
SSH, as implemented in OpenSSH before 4.0 and possibly other implementations, stores hostnames, IP addresses, and keys in plaintext in the known_hosts file, which makes it easier for an attacker that has compromised an SSH user's account to generate a list of additional targets that are more likely to have the same password or key.
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Moderate risk: more likely to be exploited than 64% of all known CVEs.
References
Related Vulnerabilities
Other CWE-255 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2010-0219 | High | 10.0 | 90% | - | - |
| CVE-2013-4786 | High | 7.5 | 82% | - | - |
| CVE-2014-9195 | High | 10.0 | 81% | - | - |
| CVE-2009-3548 | High | 7.5 | 79% | - | - |
| CVE-2009-4189 | High | 10.0 | 79% | - | - |
| CVE-2017-8229 | Critical | 9.8 | 74% | - | - |
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.