Astra Linux – Vulnerability in edk2

A heap overflow in the LzmaUefiDecompressGetInfo function in EDK II...

Linux kernel Firmware Heap Buffer Overflow DoS

The vulnerability of the eficapsulesetupinfo function in the drivers/firmware/efi/capsule-loader.c file of the Linux kernel firmware module is related to incorrect calculation of buffer size. Exploiting this vulnerability could allow an attacker to cause a system failure...

Linux x86 Kernel Efi Crash Gracefully On Page Fault

The vulnerability of the efecrashgracefullyonpagefault function in the arch/x86/platform/efi/quirks.c module of the Linux operating system’s kernel support for x86 platforms is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability allows an...

CVE-2026-25250 — Updated!

🕷️ CVE-2026-25250: Improper Trusted Bootloader Chain Validation A Microsoft-signed third-party bootloader that loads a secondary EFI binary with no signature or integrity verification, collapsing the Secure Boot chain of trust from within. 📑 Table of Contents Research Context Official References...

efi Component DoS

The vulnerability of the efi component in the Linux operating system’s kernel is related to incorrect calculation of the buffer size. Exploiting this vulnerability can allow an attacker to cause a service failure...

ANT-2026-50T0MN89 · uboot · Out-of-bounds-write

oob-write high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-50T0MN89: U-Boot EFI Image Loader: Out-of-Bounds Write via Unbounded ...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100747)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100747 advisory. In the Linux kernel, the following vulnerability has been resolved: efi/capsule-loader: fix incorrect sizeof in phys array reallocation The krealloc call for...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100389)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100389 advisory. In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region The current logic at cperprintfwerr doesn't check i...

EFI/CPER Linux Kernel DoS

The vulnerability of EFI/CPER components in Linux kernel is related to errors in processing parameter length. Exploiting this vulnerability can allow an attacker to cause a service failure...

RockyLinux 9 : osbuild-composer (RLSA-2026:49838)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:49838 advisory. crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation CVE-2026-32281 crypto/x509: crypto/tls: golang: Go:...

Important: Red Hat Security Advisory: osbuild-composer security, bug fix, and enhancement update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabili...

RHEL 9 : osbuild-composer (RHSA-2026:49838)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:49838 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building...

Xerox DC260 EFI Fiery Controller Webtools 2.0 - Local File Inclusion Detection

Xerox DC260 EFI Fiery Controller Webtools 2.0 is vulnerable to local file inclusion because input passed thru the 'file' GET parameter in 'forceSave.php' script is not properly sanitized before being used to read files. This can be exploited by an unauthenticated attacker to read arbitrary files ...

USN-8574-3: Linux kernel vulnerabilities

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. CVE-2025-54505 It was discovered that some AMD Zen 2 processors did not properly isolate shared...

USN-8604-1 linux-azure-6.17 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: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

USN-8604-1: Linux kernel (Azure) 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: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

CVE-2026-64183

A flaw was found in the Linux kernel's EFI Extensible Firmware Interface runtime services. This vulnerability occurs due to a NULL pointer dereference when ACPI Advanced Configuration and Power Interface PRM Platform Runtime Mechanism calls are made before the necessary workqueue is allocated. Th...

Linux Distros Unpatched Vulnerability : CVE-2026-64183

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: efi: Allocate runtime workqueue before ACPI init Since commit 5894cf571e14 acpi/prmt: Use EF...

CVE-2026-64183 efi: Allocate runtime workqueue before ACPI init

In the Linux kernel, the following vulnerability has been resolved: efi: Allocate runtime workqueue before ACPI init Since commit 5894cf571e14 "acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers" ACPI PRM calls are delegated to a workqueue which runs in a kernel thread, making it easier to...

CVE-2026-64183

The CVE-2026-64183 issue affects the Linux kernel EFI runtime, specifically PRM calls, which could NULL-deref if PRM accesses occur before the EFI workqueue is allocated. The root cause is early ACPI PRM access during init before efisubsys_init() runs and before the runtime workqueue exists. The ...