CVE-2016-3235

CVE-2016-3235 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

Microsoft Visio 2007 SP3, Visio 2010 SP2, Visio 2013 SP1, Visio 2016, Visio Viewer 2007 SP3, and Visio Viewer 2010 mishandle library loading, which allows local users to gain privileges via a crafted application, aka "Microsoft Office OLE DLL Side Loading Vulnerability."

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

• http://packetstormsecurity.com/files/137490/Microsoft-Visio-DLL-Hijacking.html
• http://seclists.org/fulldisclosure/2016/Jun/32
• http://www.securityfocus.com/archive/1/538685/100/0/threaded
• http://www.securitytracker.com/id/1036093
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-070
• https://www.securify.nl/advisory/SFY20150804/microsoft_visio_multiple_dll_side_loading_vulnerabilities.html
• http://packetstormsecurity.com/files/137490/Microsoft-Visio-DLL-Hijacking.html
• http://seclists.org/fulldisclosure/2016/Jun/32