ACTIVELY EXPLOITED
CVE-2016-3298: Microsoft Internet Explorer Messaging API Information Disclosure Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Internet Explorer |
| Actively exploited | Yes |
| Added to CISA KEV | 24 May 2022 |
| CISA federal deadline | 14 Jun 2022 |
| Weakness (CWE) | CWE-200 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
An information disclosure vulnerability exists when the Microsoft Internet Messaging API improperly handles objects in memory. An attacker who successfully exploited this vulnerability could allow the attacker to test for the presence of files on disk.
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.