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Intelligence Center » Browse All Vulnerabilities » CVE-2011-3273


Vulnerability Score 7.8 7.8
CVE Id CVE-2011-3273
Last Modified 14 May 2012 12:00:00
Published 03 Oct 2011 07:55:03
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact COMPLETE COMPLETE
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



Memory leak in Cisco IOS 15.0 through 15.1, when IPS or Zone-Based Firewall (aka ZBFW) is configured, allows remote attackers to cause a denial of service (memory consumption or device crash) via vectors that trigger many session creation flows, aka Bug ID CSCti79848.

Vulnerable Systems

Operating System

  • Cisco Ios 15.0

  • Cisco Ios 15.0m

  • Cisco Ios 15.0sg

  • Cisco Ios 15.0xa

  • Cisco Ios 15.0xo

  • Cisco Ios 15.1

  • Cisco Ios 15.1gc

  • Cisco Ios 15.1m

  • Cisco Ios 15.1s

  • Cisco Ios 15.1t

  • Cisco Ios 15.1xb


CISCO - 20110928 Cisco IOS Software IPS and Zone-Based Firewall Vulnerabilities


Last Updated: 27 May 2016 10:57:15