Microsoft Crypto API 5.131.2600.2180 through 6.0, as used in Outlook, Windows Live Mail, and Office 2007, performs Certificate Revocation List (CRL) checks by using an arbitrary URL from a certificate embedded in a (1) S/MIME e-mail message or (2) signed document, which allows remote attackers to obtain reading times and IP addresses of recipients, and port-scan results, via a crafted certificate with an Authority Information Access (AIA) extension.

Stack-based buffer overflow in Microsoft Office Access allows remote, user-assisted attackers to execute arbitrary code via a crafted Microsoft Access Database (.mdb) file. NOTE: due to the lack of details as of 20071210, it is not clear whether this issue is the same as CVE-2007-6026 or CVE-2005-0944.