CVE-2026-45656CWE-693
UEFI Secure Boot Security Feature Bypass Vulnerability
High · published June 9, 2026
What it is
Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.
The record
Technical detail
- CVSS v3.1
- 7.8 · HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CVSS v4.0
- Not supplied
- EPSS
- 0.00333 · 25.4th percentile
- Weakness
- CWE-693 · Protection Mechanism Failure
- Published
- 2026-06-09T17:04Z
EPSS history
Timeline