Microsoft Outlook Spoofing Vulnerability
CVE-2016-3366 is fixed in 9 products on 1 platform, first by KB3118303, released September 13, 2016. It is not reported as exploited. Patch Radar priority: High.
<p>A spoofing vulnerability exists when Microsoft Outlook does not strictly adhere to RFC2046, and improperly identifies the end of a MIME attachment. An improper MIME attachment ending may cause antivirus or antispam scanning to not work as intended.</p> <p>To exploit the vulnerability, an attacker could send a specially crafted email attachment to a user in an attempt to launch a social engineering attack, such as phishing.</p> <p>The security update addresses the vulnerability by correcting how Outlook determines the end of MIME messages.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Microsoft Outlook 2007 Service Pack 3 | KB3118303 | Sep 13, 2016 | |
| Microsoft Outlook 2010 Service Pack 2 (32-bit editions) | KB3118313 | Sep 13, 2016 | |
| Microsoft Outlook 2010 Service Pack 2 (64-bit editions) | KB3118313 | Sep 13, 2016 | |
| Microsoft Outlook 2013 RT Service Pack 1 | KB3118280 | Sep 13, 2016 | |
| Microsoft Outlook 2013 Service Pack 1 (32-bit editions) | KB3118280 | Sep 13, 2016 | |
| Microsoft Outlook 2013 Service Pack 1 (64-bit editions) | KB3118280 | Sep 13, 2016 | |
| Microsoft Outlook 2016 (32-bit edition) | KB3118293 | Sep 13, 2016 | |
| Microsoft Outlook 2016 (64-bit edition) | KB3118293 | Sep 13, 2016 | |
| Microsoft Outlook 2016 for Mac | KB3186807 | Sep 13, 2016 | |
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