CVE-2016-3298: Microsoft Internet Explorer Messaging API Information Disclosure Vulnerability

Medium severity, CVSS 6.5. Actively exploited: in CISA KEV since 2022-05-24. EPSS: 33.3% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 9 through 11 and the Internet Messaging API in Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 SP1 allow remote attackers to determine the existence of arbitrary files via a crafted web site, aka "Internet Explorer Information Disclosure Vulnerability."

Affected products

• Microsoft Internet Explorer: version 9 only; version 10 only; version 11 only
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Vista: affected versions not specified

Published 2016-10-14. Last modified 2026-06-17.