Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RISCV: Kernel mappings of the EFI page table must be synchronized before switching to the EFI page table. The EFI page table is initially created as a copy of the kernel page table. When VMAPSTACK is enabled, kernel stacks are...

Astra Linux – Vulnerability in Intel Microcode

Improper input validation in the UEFI firmware CseVariableStorageSmm for some Intel processors may allow a privileged user to potentially enable privilege escalation through local access...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ice: fixed NULL access to tx-inuse in iceptptsirq. The E810 device supports a “low latency” firmware interface for accessing and reading Tx timestamps. This interface does not use the standard Tx timestamp logic, due to the laten...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/efistub: Calls boot services in mixed mode on the firmware’s stack Normally, the EFI stub calls into EFI boot services using the stack that was active when the stub was entered. According to the UEFI specification, this stack...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Check the dsbr size from the EFI variable Since the size of the struct btinteldsbr is already known, we can simply start checking there instead of querying the size of the EFI variable. If the final result doe...

Astra Linux – Vulnerability in Intel Microcode

Improper input validation in the XmlCli feature for UEFI firmware on some Intel processors may allow a privileged user to potentially enable privilege escalation through local access...

Vendor-signed UEFI applications found vulnerable to Secure Boot bypass

Overview Multiple vendor-signed UEFI applications are vulnerable to Secure Boot bypass via a "Bring Your Own Vulnerable Driver" BYOVD-style attack. If a target system trusts the affected vendor’s certificate, an attacker can exploit these applications to execute arbitrary code during the early...

CVE-2026-45656

Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally...

EUVD-2026-35696

Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally...

CVE-2026-45656

Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally...

CVE-2026-45656 UEFI Secure Boot Security Feature Bypass Vulnerability

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PT-2026-48017

Name of the Vulnerable Software and Affected Versions Windows UEFI affected versions not specified Description A protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally. Recommendations At the moment, there is no information about a newer...

Microsoft Windows UEFI 处理逻辑错误漏洞

Microsoft Windows is an operating system used by personal devices by the American company Microsoft. There are security vulnerabilities in Microsoft Windows UEFI. Attackers can exploit these vulnerabilities to bypass certain features. The following products and versions are affected: Windows 11...

CVE-2026-46290

A flaw was found in the Linux kernel's x86/efi component. Due to changes in FPU softirq handling, the system incorrectly identifies normal task context as an interrupt context. This issue, when combined with buggy firmware that triggers page faults during EFI Extensible Firmware Interface runtime...

CVE-2026-48101

A flaw was found in 7-Zip. This uninitialized memory disclosure vulnerability exists in the UEFI capsule .scap parser. A remote attacker could exploit this by crafting a malicious .scap file, leading to the exposure of sensitive uninitialized heap memory as extracted file content. This could resu...

EUVD-2026-34854

7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parserCPP/7zip/Archive/UefiHandler.cpp. The function validates an attacker-controlled opco...

PT-2026-46981

7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parserCPP/7zip/Archive/UefiHandler.cpp. The function validates an attacker-controlled opco...

SUSE CVE-2026-45851

In the Linux kernel, the following vulnerability has been resolved: efi: Fix reservation of unaccepted memory table The reserveunaccepted function incorrectly calculates the size of the memblock reservation for the unaccepted memory table. It aligns the size of the table, but fails to account for...

UBUNTU-CVE-2026-45851

In the Linux kernel, the following vulnerability has been resolved: efi: Fix reservation of unaccepted memory table The reserveunaccepted function incorrectly calculates the size of the memblock reservation for the unaccepted memory table. It aligns the size of the table, but fails to account for...

CVE-2026-45851

CVE-2026-45851 targets the Linux kernel EFI subsystem. The vulnerability arises in the reserve_unaccepted() memblock reservation: it aligns the table size but does not account for cases where the table’s start (efi.unaccepted) is not page-aligned. If the table begins mid-page and ends across the ...