Security Advisory
CVE-2015-4199
7.1
Vulnerability Description
Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.
Published Date
June 27, 2015
Official Source
NIST NVD Advisory