CVE-2026-48578
Medium
Elevated severity or exploit probability.
CVSS base
7.9
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
EPSS — probability of exploitation (30 days)
0.3%
19.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-284
Published 2026-06-09 · modified 2026-07-23
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | H | High |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-06-09 — Published (NVD)
- 2026-07-23 — Last modified (NVD)
Description
Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.