CVE intelligence

CVE-2026-34332

Vulnerability intelligence

Published May 12, 2026Sources checked Nov 11, 2026

8.0HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-34332 and is rated High severity with a CVSS score of 8.0. 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: May 12, 2026

Install KB5087539. Install KB5087423.

Vendor-listed releases

10.0.26100.32860
10.0.26100.32772

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-34332?

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.

Source: NVD