CVE intelligence

CVE-2026-118297

Vulnerability intelligence

Published Nov 10, 2026Sources checked Nov 10, 2026

8.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-118297 and is rated High severity with a CVSS score of 8.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Nov 10, 2026

Vendor remediation details

Release Notes Install KB5002946.

Vendor-listed releases

16.0.14334.21048
16.0.17932.21140
https://aka.ms/OfficeSecurityReleases
16.115.26110837
16.0.10417.20236

CISA KEVNot listedBased on the latest collected catalog

EPSSUnavailableNo current score collected

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-118297?

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Source: NVD