ACTIVELY EXPLOITED

CVE-2017-8570: Microsoft Office Remote Code Execution Vulnerability

Facts
VendorMicrosoft
ProductOffice
Actively exploitedYes
Added to CISA KEV25 Feb 2022
CISA federal deadline25 Aug 2022

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory.

SOURCES

Other Microsoft flaws

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