Total vulnerabilities in the database
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.
| Software | From | Fixed in |
|---|---|---|
| cisco / ios | 15.3s | 15.3s.x |