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CVE WatchJul 23, 2026

CVE-2026-48578

Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.

CVSS

7.9

High

EPSS

0.3%

p19

KEV

—

Exploit Today

6

0-100

Published: Jun 9, 2026 · Last modified: Jul 23, 2026 · CWE-284

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-08-042026-08-31

Technical description

Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.

Official references

msrc.microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48578

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