Servers and applications
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 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.
- Severity
- Low 1.2
- Published
- 23 Aug 2005
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 21 Oct 2026
- Exploit chance
- 1.2% in the next 30 daysHigher than 68% of CVEs. EPSS by FIRST, 12 Nov 2026
- Weakness
- CWE-255
- Attack
- Needs local access · Only under certain conditions · No login needed
- Attacker can
- Read some data
- CVSS vector
AV:L/AC:H/Au:N/C:P/I:N/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
OpenSSHServers and applications · cpe:a:openbsd:openssh |
All 30 release lines
|