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Microsoft Windows Kernel Elevation of Privilege Vulnerability (CVE-2026-24289)

Updated 3mo agoFirst seen Mar 11, 20262 sources

Microsoft published guidance for CVE-2026-24289, an Important severity Windows Kernel elevation of privilege vulnerability caused by CWE-416 (use-after-free). Microsoft scored the issue with CVSS 3.1: 7.8 (vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating exploitation requires local access with low attack complexity and low privileges, and could result in high impact to confidentiality, integrity, and availability if successfully exploited.

The Security Update Guide entry provides standard Microsoft consumption options (e.g., PowerShell, API, CSAF) for tracking and integrating the advisory into vulnerability management workflows. The two provided references are effectively duplicate MSRC pages for the same CVE (one localized under /en-US/) and do not add distinct technical details beyond the vulnerability classification and scoring.

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Microsoft Windows Kernel Elevation of Privilege Vulnerability (CVE-2026-24289)
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EVENT TIMELINE

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1 event from the most recent confirmed update back to the earliest known activity.

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Mar 10, 20264mo ago

Microsoft publishes advisory for CVE-2026-24289

Microsoft added CVE-2026-24289, a Windows Kernel Elevation of Privilege vulnerability, to its Security Update Guide. The references indicate public disclosure of the advisory on March 10, 2026.

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