UpHeron
All vulnerabilities

Servers and applications

CVE-2010-5107

The default configuration of OpenSSH through 6.1 enforces a fixed time limit between establishing a TCP connection and completing a login, which makes it easier for remote attackers to cause a denial of service (connection-slot exhaustion) by periodically making many new TCP connections.

Severity
High 7.5
Published
7 Mar 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
17% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Uncontrolled resource consumption (CWE-400)
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Version 6.0
  • Version 5.9
  • Version 5.8p2
  • Version 5.8
All 83 release lines
  • Every version up to 6.1
  • Version 1.2
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.27
  • Version 1.3
  • Version 1.5
  • Version 1.5.7
  • Version 1.5.8
  • Version 2.1
  • Version 2.1.1
  • Version 2.2
  • Version 2.3
  • Version 2.3.1
  • Version 2.5
  • Version 2.5.1
  • Version 2.5.2
  • Version 2.9
  • Version 2.9p1
  • Version 2.9p2
  • Version 2.9.9
  • Version 2.9.9p2
  • Version 3.0
  • Version 3.0p1
  • Version 3.0.1
  • Version 3.0.1p1
  • Version 3.0.2
  • Version 3.0.2p1
  • Version 3.1
  • Version 3.1p1
  • Version 3.2
  • Version 3.2.2
  • Version 3.2.2p1
  • Version 3.2.3p1
  • Version 3.3
  • Version 3.3p1
  • Version 3.4
  • Version 3.4p1
  • Version 3.5
  • Version 3.5p1
  • Version 3.6
  • Version 3.6.1
  • Version 3.6.1p1
  • Version 3.6.1p2
  • Version 3.7
  • Version 3.7.1
  • Version 3.7.1p1
  • Version 3.7.1p2
  • Version 3.8
  • Version 3.8.1
  • Version 3.8.1p1
  • Version 3.9
  • Version 3.9.1
  • Version 3.9.1p1
  • Version 4.0
  • Version 4.0p1
  • Version 4.1
  • Version 4.1p1
  • Version 4.2
  • Version 4.2p1
  • Version 4.3
  • Version 4.3p1
  • Version 4.3p2
  • Version 4.4
  • Version 4.4p1
  • Version 4.5
  • Version 4.6
  • Version 4.7
  • Version 4.8
  • Version 4.9
  • Version 5.0
  • Version 5.1
  • Version 5.2
  • Version 5.3
  • Version 5.4
  • Version 5.5
  • Version 5.6
  • Version 5.7
  • Version 5.8
  • Version 5.8p2
  • Version 5.9
  • Version 6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2010-5107
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2010-5107