CVE-2026-23352

In the Linux kernel, the following vulnerability has been resolved: x86/efi: defer freeing of boot services memory efifreebootservices frees memory occupied by EFIBOOTSERVICESCODE and EFIBOOTSERVICESDATA using memblockfreelate. There are two issue with that: memblockfreelate should be used for...

EUVD-2025-208542

Improper buffer restrictions in some UEFI firmware for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable data manipulation. This result may potentially occur via local access whe...

EUVD-2025-208555

Exposure of resource to wrong sphere in the UEFI PdaSmm module for some IntelR reference platforms may allow an information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local...

EUVD-2025-208548

Improper input validation in the UEFI FlashUcAcmSmm module for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable local code execution. This result may potentially occur via local...

EUVD-2025-208550

Improper input validation in the UEFI ImcErrorHandler module for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via...

CVE-2025-20068

Improper input validation in the UEFI ImcErrorHandler module for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via...

CVE-2025-20064

Improper input validation in the UEFI FlashUcAcmSmm module for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable local code execution. This result may potentially occur via local...

CVE-2025-20027

Improper input validation in the UEFI WheaERST module for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local...

CVE-2025-20005

Improper buffer restrictions in some UEFI firmware for some IntelR reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable data manipulation. This result may potentially occur via local access whe...

PT-2026-24490

Improper input validation in the UEFI firmware for some Intel Reference Platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable data manipulation. This result may potentially occur via local access when...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004028)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004028 advisory. An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivarssdt ACPI variable could be used by...

The vulnerability of the Bootguard component of the UEFI firmware in Clevo laptops allows a hacker to circumvent existing security restrictions.

The vulnerability of the Bootguard component of the UEFI firmware in Clevo laptops relates to the use of a hard-coded cryptographic key. Exploiting this vulnerability could allow an attacker to circumvent existing security restrictions...

PT-2026-27717

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue related to the freeing of EFI boot services memory. The efi free boot services function incorrectly uses memblock free late to free memory reserved wit...

New UEFI Flaw Enables Early-Boot DMA Attacks on ASRock, ASUS, GIGABYTE, MSI Motherboards

Certain motherboard models from vendors like ASRock, ASUSTeK Computer, GIGABYTE, and MSI are affected by a security vulnerability that leaves them susceptible to early-boot direct memory access DMA attacks across architectures that implement a Unified Extensible Firmware Interface UEFI and...

CVE-2025-62864

Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM MMCommunicate service that could result in an out-of-bounds write within the UEFI-MM Secure Partition context...

CVE-2024-38798

EDK2 contains a vulnerability in BIOS where an attacker may cause “Exposure of Sensitive Information to an Unauthorized Actor” by local access. Successful exploitation of this vulnerability will lead to possible information disclosure or escalation of privilege and impact Confidentiality...

EDK2 安全漏洞

EDK2 is a set of cross-platform firmware development environments from the Tianocore community based on the UEFI and PI specifications. A security vulnerability exists in EDK2 that stems from improper input validation and could lead to arbitrary command execution...

CVE-2025-2486

The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure Boot environments, possibly allowing bypass of Secure Boot constraints. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some previous versions inserted a secure-boot-based...

UEFI Shell accessible in AAVMF with Secure Boot enabled on Ubuntu

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CVE-2025-35968

Protection mechanism failure in the UEFI firmware for the Slim Bootloader within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via...