Netskope Threat Labs

FILE-OFFICE Microsoft Office Excel Viewer remote code execution attempt

IPS-SWG

1 SID: 40723

First seen
April 2023
Last seen
September 2026

Detects a workbook exploiting CVE-2016-7231, a remote code execution flaw in Microsoft Excel and the Excel Viewer. The rule matches the crafted sheet records that public exploits use to corrupt memory during parsing.