The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
The Ethernet Connectivity Fault Management (CFM) handling feature in Cisco IOS 12.2(33)SRE9a and earlier and IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (device reload) via malformed CFM packets, aka Bug ID CSCuq93406.
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to 12.2\(33\)sre9a (inclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to 3.13s (inclusive)