|Date: (C)2012-05-03 (M)2015-12-16|
|CVSS Score: 7.1||Access Vector: NETWORK|
|Exploitability Subscore: 8.6||Access Complexity: MEDIUM|
|Impact Subscore: 6.9||Authentication: NONE|
| ||Confidentiality: NONE|
| ||Integrity: NONE|
| ||Availability: COMPLETE|
Race condition in the Zone-Based Firewall in Cisco IOS 15.1 and 15.2, when IPS policies are configured, allows remote attackers to cause a denial of service (device crash) by sending IPv6 packets, aka Bug ID CSCtk53534.