CVE-2016-3351Actively exploitedAdded to KEV 2022-05-24Medium severity, CVSS 6.5Known ransomware campaign use

Microsoft Internet Explorer and Edge Information Disclosure Vulnerability

Microsoft, Internet Explorer and Edge

Description

An information disclosure vulnerability exists in the way that certain functions in Internet Explorer and Edge handle objects in memory. The vulnerability could allow an attacker to detect specific files on the user's computer.

CVSS severity

Medium (6.5/10)

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

Sourced from NVD, reflects how severe this vulnerability is if exploited, not whether it has been. Every advisory on this page is already a CISA-confirmed active exploitation case regardless of its CVSS score.

EPSS, exploit probability

High

26.5%

estimated chance of real-world exploitation in the next 30 days, higher than 98.0% 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.

Public exploit references (via NVD)

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-06-14

CWE-200

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