CVE-2026-48578CWE-284

Secure Boot Security Feature Bypass Vulnerability

High · published June 9, 2026

CVSS v3.1
7.9
EPSS
0%
Percentile
25.7
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.9 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00335 · 25.7th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-06-09T17:05Z
EPSS history
Timeline
  • 09 JUN 17:05Z
    Secure Boot Security Feature Bypass Vulnerability
    cvelistv5