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

Get ahead of threats like this
Mallory correlates global threat intelligence with your attack surface — know if you’re exposed before adversaries strike.
How this story unfolded
1 event from the most recent confirmed update back to the earliest known activity.
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.
Sources
2 references tracked. Mallory keeps watching after this page renders.
CVE-2026-24289 - Security Update Guide - Microsoft - Windows Kernel Elevation of Privilege Vulnerability
msrc.microsoft.com
Open sourceCVE-2026-24289 - Security Update Guide - Microsoft - Windows Kernel Elevation of Privilege Vulnerability
msrc.microsoft.com
Open sourceSee the full picture, correlated to your attack surface.
Map indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.


