ACTIVELY EXPLOITED

CVE-2017-0022: Microsoft XML Core Services Information Disclosure Vulnerability

Facts
VendorMicrosoft
ProductXML Core Services
Actively exploitedYes
Added to CISA KEV24 May 2022
CISA federal deadline14 Jun 2022
Weakness (CWE)CWE-200

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

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

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.