ZDI-26-621: Microsoft Windows UMPDDrvRealizeBrush Improper Object Management Local Privilege Escalation Vulnerability

Executive Summary

A local privilege escalation vulnerability (CVE-2026-62712) in Microsoft Windows' UMPDDrvRealizeBrush driver allows attackers who can execute low‑privileged code to gain higher privileges. The flaw stems from improper object management. Zero Day Initiative assigned CVSS 7.8.


Intelligence Metadata - Source Publisher: Zero Day Initiative - Published Date: 2026-09-08T05:00:00+00:00 - Category: cves

Original Description: This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-62712.

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Source: Zero Day Initiative