Vulnerabilities > Openbsd > Openssh > 4.6
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2007-04-25 | CVE-2007-2243 | Improper Authentication vulnerability in Openbsd Openssh OpenSSH 4.6 and earlier, when ChallengeResponseAuthentication is enabled, allows remote attackers to determine the existence of user accounts by attempting to authenticate via S/KEY, which displays a different response if the user account exists, a similar issue to CVE-2001-1483. | 5.0 |