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OpenAdvisories
High MSRC-CVE-2026-62877 1 CVE

Windows Win32k Elevation of Privilege Vulnerability

Published Aug 11, 2026 · Updated Oct 28, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
10.0.17763.9121 — https://support.microsoft.com/help/5120238
10.0.20348.5499 — https://support.microsoft.com/help/5120242
10.0.20348.5440 — https://support.microsoft.com/help/5120229
10.0.19044.7663 — https://support.microsoft.com/help/5120249
10.0.26100.33296 — https://support.microsoft.com/help/5120233
10.0.26100.33222 — https://support.microsoft.com/help/5120228
10.0.26200.9168 — https://support.microsoft.com/help/5121003
10.0.26200.9106 — https://support.microsoft.com/help/5120994
10.0.22631.7517 — https://support.microsoft.com/help/5120240
10.0.28000.2704 — https://support.microsoft.com/help/5121000
10.0.14393.9418 — https://support.microsoft.com/help/5120418
6.2.9200.26280 — https://support.microsoft.com/help/5120386
6.3.9600.23338 — https://support.microsoft.com/help/5120385
16.0.20430.20000 — https://support.microsoft.com/en-us/microsoft-365
16.112.26090911 — https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac

Vulnerabilities 1

Revision history

  1. #2

    Added supported editions of Microsoft Office to the Security Updates table because they are affected by this vulnerability. Microsoft recommends that customers running any of these editions of Office install the latest security updates to be fully protected from this vulnerability.

  2. #1

    Information published.

References