Microsoft XML Core Services Information Disclosure Vulnerability

Added to KEV
2022-05-24
Federal due date
2022-06-14
Vendor
Microsoft
Product
XML Core Services
EPSS
97.2th percentile (score 0.367, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2017-0022

CISA short description

Microsoft XML Core Services (MSXML) improperly handles objects in memory, allowing attackers to test for files on disk 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.