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CVE-2026-42829: Windows Administrator Protection Secure Feature Bypass Vulnerability

highCVSS 7.8CVE-2026-42829
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.

CSIRTS triage

What
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.
Who is affected
Users of Windows with Administrator Protection enabled.
Urgency
Remediation is important but not urgent as there is no active exploitation reported.
Action
Apply the latest security updates for Windows to address this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.8
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-42829coverage & exploitation statusNVD · CVE.org

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