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Vulnerability · Published Dec 9, 2025 · Assigned by TianoCore

CVE-2025-2296Un-verified kernel bypass Secure Boot mechanism in direct boot mode

High 8.4

In plain English

A high-severity improper input validation in EDK2 from TianoCore. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.4High
Exploit odds (30 days)0.8%top 44.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10edk2-aarch6420251114-5.el10_2ALSA-2026:18465
AlmaLinux:10edk2-ovmf20251114-5.el10_2ALSA-2026:18465
AlmaLinux:10edk2-tools20251114-5.el10_2ALSA-2026:18465
AlmaLinux:10edk2-tools-doc20251114-5.el10_2ALSA-2026:18465
Debian:12edk2no fix listedDEBIAN-CVE-2025-2296
Debian:13edk22025.02-1DEBIAN-CVE-2025-2296
Debian:14edk22025.02-1DEBIAN-CVE-2025-2296
Rocky Linux:10edk20:20251114-5.el10RLSA-2026:18465
Ubuntu:22.04:LTSedk2no fix listedUBUNTU-CVE-2025-2296
Ubuntu:24.04:LTSedk2no fix listedUBUNTU-CVE-2025-2296
Ubuntu:25.10edk2no fix listedUBUNTU-CVE-2025-2296

Affected products (as reported)

VendorProductVersions
TianoCore EDK2 0 – before edk2-stable202502

Weakness: CWE-20 · 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

References