CVE intelligence

CVE-2026-45654

Vulnerability intelligence

Published Jun 9, 2026Sources checked Nov 12, 2026

7.9HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-45654 and is rated High severity with a CVSS score of 7.9. 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: Jun 9, 2026

Vendor remediation details

Install KB5095051. Install KB5094125. Install KB5094126.

Vendor-listed releases

10.0.28000.2269
10.0.26100.32995
10.0.26200.8655
10.0.26100.8655

CISA KEVNot listedBased on the latest collected catalog

EPSS0.3%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-45654?

Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

Source: NVD