Microsoft OneNote 2007 SP3, 2010 SP2, 2013 SP1, 2013 RT SP1, 2016, and 2016 for Mac allow remote attackers to obtain sensitive information via a crafted OneNote file, aka "Microsoft OneNote Information Disclosure Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-099