Microsoft Internet Explorer Memory Corruption Vulnerability

Added to KEV
2022-03-28
Federal due date
2022-04-18
Vendor
Microsoft
Product
Internet Explorer
EPSS
99.6th percentile (score 0.908, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2016-0189

CISA short description

The Microsoft JScript nd VBScript engines, as used in Internet Explorer and other products, allow attackers to execute remote code or cause a denial of service (memory corruption) via a crafted web site.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.