Vulnerability Details CVE-2015-4199
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 66.1%
CVSS Severity
CVSS v2 Score 7.1
References