Microsoft Internet Explorer Use-After-Free Vulnerability

Added to KEV
2022-03-03
Federal due date
2022-03-24
Vendor
Microsoft
Product
Internet Explorer
EPSS
99.5th percentile (score 0.882, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2013-3897

CISA short description

A use-after-free vulnerability exists within CDisplayPointer in Microsoft Internet Explorer that allows an attacker to remotely execute arbitrary code.

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.