Un-verified kernel bypass Secure Boot mechanism in direct boot mode (TianoCore EDK2)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.77 % · percentile 56 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- TianoCore
- NVD status
- Deferred
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.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 8.4 | 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 | TianoCore |
| CVSS 4.0 | HIGH 8.4 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · infosec@edk2.groups.io (Secondary) |
European references
- ENISA EUVD · EUVD-2025-201946
- GCVE · GCVE-0-2025-2296
Affected products
| Product | Versions |
|---|---|
| TianoCore · EDK2 | affected 0 < edk2-stable202502 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |