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Servers and applications

CVE-2012-4661

Stack-based buffer overflow in the DCERPC inspection engine on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.3 before 8.3(2.34), 8.4 before 8.4(4.4), 8.5 before 8.5(1.13), and 8.6 before 8.6(1.3) and the Firewall Services Module (FWSM) 4.1 before 4.1(9) in Cisco Catalyst 6500 series…

Severity
High 9.0
Published
29 Oct 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4% in the next 30 daysHigher than 90% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Read data · Change some data · Take it down
CVSS vector
AV:N/AC:M/Au:N/C:C/I:P/A:C
Sources
NVD

Description

Stack-based buffer overflow in the DCERPC inspection engine on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.3 before 8.3(2.34), 8.4 before 8.4(4.4), 8.5 before 8.5(1.13), and 8.6 before 8.6(1.3) and the Firewall Services Module (FWSM) 4.1 before 4.1(9) in Cisco Catalyst 6500 series switches and 7600 series routers might allow remote attackers to execute arbitrary code via a crafted DCERPC packet, aka Bug IDs CSCtr21359 and CSCtr27522.

From NVD.

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • Version 8.6(1)
  • Version 8.6
  • Version 8.5(1.4)
  • Version 8.5(1)
All 12 release lines
  • Version 8.3(1)
  • 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)
  • Version 8.5
  • Version 8.5(1)
  • Version 8.5(1.4)
  • Version 8.6
  • Version 8.6(1)

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-4661
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-4661