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Servers and applications

CVE-2012-0378

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 through 8.4 allow remote attackers to cause a denial of service (connection limit exceeded) by triggering a large number of stale connections that result in an incorrect value for an MPF connection count, aka Bug ID CSCtv19854.

Severity
High 7.8
Published
3 May 2012
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-189
Attack
Over the network · No login needed
Attacker can
Take it down
CVSS vector
AV:N/AC:L/Au:N/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(2.11)
  • Version 8.4(2)
  • Version 8.4(1.11)
  • Version 8.4(1)
All 32 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(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)
  • Version 8.4(1.11)
  • Version 8.4(2)
  • Version 8.4(2.11)

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-0378
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-0378