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Age in Days
CVSS Score
Patch within next
Risk Level



30 Days



This vulnerability is 16 years 6 months and 27 days old there are exploits publicly available for it. The vulnerability itself is over a year old, and with there being exploits publicly available it is highly advisable that this vulnerability is patched immediately.



The remote host has an application that is affected multiple vulnerabilities.


Vulnerability Description

According to its banner, the remote host appears to be running OpenSSH version 3.4 or older. Such versions are reportedly affected by multiple flaws. An attacker may exploit these vulnerabilities to gain a shell on the remote system.

Note that several distributions patched this hole without changing the version number of OpenSSH. Since us solely relied on the banner of the remote SSH server to perform this check, this might be a false positive.

If you are running a RedHat host, make sure that the command:
          rpm -q openssh-server 	  Returns:



Upgrade to OpenSSH 3.4 or contact your vendor for a patch.


Further Information


CVE References

CVE-2002-0639 NIST | MITRE | CVEDetails
CVE-2002-0640 NIST | MITRE | CVEDetails


Get in touch

Should you have any questions regarding this or any security matter, please do not hesitate to get in touch by emailing the Hedgehog Cyber Operations Team.

Whilst every effort is made to ensure the accuracy and robustness of any information presented, it is not possible for Hedgehog Cyber to test every possible scenario an organisation may face, and Hedgehog Cyber cannot be held liable for any loss or damage which may arise from taking action on any of the contents provided. Hedgehog Cyber strongly advises that all recommendations, solutions and detection methods detailed, are thoroughly reviewed and tested in non-production environments before being considered suitable for production release, in-line with any existing internal change control procedures.