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 kernel in Apple Mac OS X before 10.9 does not properly check for errors during the processing of multicast Wi-Fi packets, which allows remote attackers to cause a denial of service (system crash) by leveraging presence in an 802.11 network's coverage area.
cpe:2.3:o:apple:mac_os_x:*:supplemental_update:*:*:*:*:*:* versions up to 10.8.5 (inclusive)