CVE-2016-3298Actively exploitedAdded to KEV 2022-05-24

Microsoft Internet Explorer Messaging API Information Disclosure Vulnerability

Microsoft, Internet Explorer

Description

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.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

High

33.3%

estimated chance of real-world exploitation in the next 30 days, higher than 98.4% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-06-14

CWE-200

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