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CVE-2025-2296

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

HIGH
8.4
CVSS Score
Published: December 9, 2025 at 03:00 PM UTC
Updated: October 7, 2026 at 08:10 PM UTC
1 product affected across 1 vendorEDK2

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Severity
HIGH8.4
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

EDK2· Tianocore
60%
v < edk2-stable202502
Affected range stops below edk2-stable202502, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://github.com/tianocore/edk2/security/advisories/GHSA-6pp6-cm5h-86g5

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHTianoCore
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20

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