All vulnerabilities

Servers and applications

CVE-2004-2069

sshd.c in OpenSSH 3.6.1p2 and 3.7.1p2 and possibly other versions, when using privilege separation, does not properly signal the non-privileged process when a session has been terminated after exceeding the LoginGraceTime setting, which leaves the connection open and allows remote attackers to cause a denial of service (connection consumption).

Severity
Medium 5.0
Published
31 Dec 2004
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
3.4% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Version 3.6.1p2
  • Version 3.7.1p2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2004-2069
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2004-2069