Insyde InsydeH2O security vulnerabilities

Insyde InsydeH2O is a new EFI/UEFI specification from Insyde, China. It is intended to replace the traditional BIOS Basic Input/Output System. A security vulnerability exists in Insyde InsydeH2O, which stems from a buffer overflow that can be caused by untrusted user-mode applications when readin...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001740)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001740 advisory. An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free. Tenable has...

Insyde InsydeH2O security vulnerabilities

Insyde InsydeH2O is a new EFI/UEFI specification from Insyde, China. It is intended to replace the traditional BIOS Basic Input/Output System. A security vulnerability exists in Insyde InsydeH2O, which stems from a buffer overflow that can be caused by untrusted user-mode applications when readin...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001730)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001730 advisory. In efirtasmwrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation o...

CVE-2023-25600

An issue was discovered in InsydeH2O. A malicious operating system can tamper with a runtime-writable EFI variable, leading to out-of-bounds memory reads and a denial of service. This is fixed in version 01.01.04.0016...

CVE-2021-33627

An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate function of the EFISMMCOMMUNICATIONPROTOC...

CVE-2021-0113

Out of bounds write in the BMC firmware for IntelR Server Board M10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08 may allow an unauthenticated user to potentially enable a denial of service via adjacent access...

PT-2026-37606

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the GHES/CPER logic of the Linux kernel regarding the handling of ARM processor CPER records. The system fails to detect when the section length is excessively large. ...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992796)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992796 advisory. In the Linux kernel, the following vulnerability has been resolved: efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption The TPM event log table is...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993047)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993047 advisory. In the Linux kernel, the following vulnerability has been resolved: arm64: efi: Make efirtlock a rawspinlock Running a rt-kernel base on 6.2.0-rc3-rt1 on an Ampere...

SUSE-RU-2026:20004-1 Recommended update for shim

This update for shim fixes the following issues: This update for shim fixes the following issues: shim is updated to version 16.1: - shimstartimage: fix guid/handle pairing when uninstalling protocols - Fix uncompressed ipv6 netboot - fix test segfaults caused by uninitialized memory -...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992325)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992325 advisory. In the Linux kernel, the following vulnerability has been resolved: efi: Don't map the entire mokvar table to determine its size Currently, when validating the mokva...

USN-7934-1 linux-azure, linux-azure-6.14 vulnerabilities

It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. CVE-2024-36331 Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux...

EFI Linux Kernel DoS

The vulnerability of EFI components in the Linux operating system is related to the allocation of unlimited memory. Exploiting this vulnerability allows a perpetrator to cause service failures...

CVE-2025-2296

A flaw was found in EDK2 EFI Development Kit 2. This vulnerability allows an attacker to cause arbitrary command execution and impact Confidentiality, Integrity, and Availability via improper input validation by local access. Mitigation To reduce the risk by disabling direct-boot mode, ensuring a...

USN-7909-2 linux-intel-iot-realtime, linux-realtime vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S39...

EUVD-2025-93472

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...

kernel: efi: Do not import certificates from UEFI Secure Boot for T2 Macs

In the Linux kernel, the following vulnerability has been resolved: efi: Do not import certificates from UEFI Secure Boot for T2 Macs On Apple T2 Macs, when Linux attempts to read the db and dbx efi variables at early boot to load UEFI Secure Boot certificates, a page fault occurs in Apple firmwa...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-988708)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988708 advisory. In the Linux kernel, the following vulnerability has been resolved: efi: fix NULL-deref in init error path In cases where runtime services are not supported or have...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989838)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989838 advisory. In the Linux kernel, the following vulnerability has been resolved: efi: runtime: Fix potential overflow of soft-reserved region size mdsize will have been narrowed ...