CVE-2012-6066
freeSSHd.exe in freeSSHd through 1.2.6 allows remote attackers to bypass authentication via a crafted session, as demonstrated by an OpenSSH client with modified versions of ssh.c and sshconnect2.c.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 39.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
freeSSHd.exe in freeSSHd through 1.2.6 allows remote attackers to bypass authentication via a crafted session, as demonstrated by an OpenSSH client with modified versions of ssh.c and sshconnect2.c.
- CVSS 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 39.51% probability · 99th percentile
- Public exploits
- 3 in Exploit-DB · verified · first 2 December 2012
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- freesshd/freesshd
- Source
- cve@mitre.org
EPSS 39.5% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (3)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-24133source ↗ | freeSSHd 1.2.6 - Authentication Bypass (Metasploit)windows · Metasploit | remote | 15 January 2013 | yes |
| EDB-23080source ↗ | freeSSHd 2.1.3 - Remote Authentication Bypasswindows · kingcope | remote | 2 December 2012 | yes |
| EDB-23079source ↗ | freeFTPd 1.2.6 - Remote Authentication Bypasswindows · kingcope | remote | 2 December 2012 | yes |
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.