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Servers and applications

CVE-2012-5717

Cisco Adaptive Security Appliances (ASA) devices with firmware 8.x through 8.4(1) do not properly manage SSH sessions, which allows remote authenticated users to cause a denial of service (device crash) by establishing multiple sessions, aka Bug ID CSCtc59462.

Severity
Medium 6.3
Published
18 Jan 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.3% in the next 30 daysHigher than 71% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-264
Attack
Over the network · Needs a login
Attacker can
Take it down
CVSS vector
AV:N/AC:M/Au:S/C:N/I:N/A:C
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • Version 8.4(1)
  • Version 8.4
  • Version 8.3.2
  • Version 8.3.1-interim
All 30 release lines
  • Version 8.0
  • Version 8.0(2)
  • Version 8.0(3)
  • Version 8.0(4)
  • Version 8.0(5)
  • Version 8.0.2
  • Version 8.0.3
  • Version 8.0.4
  • Version 8.0.5
  • Version 8.1
  • Version 8.2
  • Version 8.2(1)
  • Version 8.2(2)
  • Version 8.2(3)
  • Version 8.2(3.9)
  • Version 8.2(4)
  • Version 8.2(4.1)
  • Version 8.2(4.4)
  • Version 8.2(5)
  • Version 8.2.1
  • Version 8.2.2
  • Version 8.2.2-interim
  • Version 8.2.3
  • Version 8.3(1)
  • Version 8.3(2)
  • Version 8.3.1
  • Version 8.3.1-interim
  • Version 8.3.2
  • Version 8.4
  • Version 8.4(1)

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-5717
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-5717