CVE-2025-2296

Un-verified kernel bypass Secure Boot mechanism in direct boot mode

Published Dec 9, 2025 CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
Description
EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tianocore
Tianocore edk2
Vendors & Products Tianocore
Tianocore edk2
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

threat_severity

Important

Type Values Removed Values Added
Description EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability.
Title Un-verified kernel bypass Secure Boot mechanism in direct boot mode
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TianoCore
Published
Updated
Dec 9, 2025, 3:11 PM
Reserved
Mar 13, 2025, 6:56 PM
Status
Deferred
Published
Dec 9, 2025, 4:17 PM
Modified
Oct 7, 2026, 8:10 PM
Severity
Important
Public date
Dec 9, 2025, 3:00 PM