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.
Mail in Apple Mac OS X before 10.9 allows remote attackers to spoof the existence of a cryptographic signature for an e-mail message by using the multipart/signed content type within an unsigned message.
cpe:2.3:o:apple:mac_os_x:*:supplemental_update:*:*:*:*:*:* versions up to 10.8.5 (inclusive)