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CVE-2005-2666
SSH, as implemented in OpenSSH before 4.0 and possibly other implementations, stores hostnames, IP addresses, and keys in plaintext in the…
- 1.2LowCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 32% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.2.
Affected products
n/a
- affected n/a
References
References6
- oval:org.mitre.oval:def:10201 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 25098 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- RHSA-2007:0257 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 19243 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.eweek.com/article2/0%2C1759%2C1815795%2C00.asp (opens in a new tab)x_refsource_MISCx_transferred
- http://nms.csail.mit.edu/projects/ssh/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2005-2667 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2005-2666)Record last updated .