What is CVE-2026-42829?

CVE-2026-42829 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Administrator Protection Secure Feature Bypass Vulnerability

Which CVE IDs does CVE-2026-42829 cover?

CVE-2026-42829 covers the following CVE IDs: CVE-2026-42829. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-42829?

CVE-2026-42829 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-42829?

CVE-2026-42829 affects 6 products, including: Windows 11 Version 24H2 for ARM64-based Systems; Windows 11 Version 24H2 for x64-based Systems; Windows 11 Version 25H2 for ARM64-based Systems; Windows 11 Version 25H2 for x64-based Systems; Windows 11 Version 26H1 for ARM64-based Systems; and others — see the full list on the advisory page.

CVE-2026-42829HighCVSS 7.8

Windows Administrator Protection Secure Feature Bypass Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

June 10, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-42829 →

📋 Description

Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.

🎯 Affected products6

Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Windows 11 version 26H1 for x64-based Systems

✅ Remediation

KB5094126 (Security Update) — fixed build 10.0.26200.8655 KB5094126 (Security Update) — fixed build 10.0.26100.8655 KB5095051 (Security Update) — fixed build 10.0.28000.2269

🔗 References (5)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5094126
referencehttps://support.microsoft.com/help/5094126
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5095051
referencehttps://support.microsoft.com/help/5095051