---
title: "Microsoft Excel Remote Code Execution Vulnerability"
summary: "Microsoft Excel Remote Code Execution Vulnerability"
severity: high
status: active
advisoryId: "GARNET-CSIRT-2026-002"
published: 2026-08-10
affected:
  - "Microsoft 365 Applications"
cves:
  - "CVE-2026-62870"
tags:
  - "microsoft"
tlp: CLEAR
references:
  - title: "TIDE · cna"
    url: "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870"
draft: false
---

## Summary

Microsoft Excel Remote Code Execution Vulnerability.

## Impact

Exploitability signals: EPSS 1% · CVSS 8.8.

## Affected systems

- Microsoft Excel

## Action

Review the vendor's guidance and patch affected systems. Prioritise by exposure.