May 13, 2025—KB5058403 (Monthly Rollup)

None None...

A vulnerability in Insyde H2O UEFI application allows for digital certificate injection via NVRAM variable

Overview A vulnerability in an Insyde H2O UEFI firmware application allows digital certificate injection through an unprotected NVRAM variable. This issue arises from the unsafe use of an NVRAM variable, which is used as trusted storage for a digital certificate in the trust validation chain. An...

A Vulnerability in UEFI Applications allows for secure boot bypass via misused NVRAM variable

Overview UEFI firmware applications DTBios and BiosFlashShell from DTResearch contain a vulnerability that allows Secure Boot to be bypassed using a specially crafted NVRAM variable. The vulnerability stems from improper handling of a runtime NVRAM variable that enables an arbitrary write...

PT-2025-24404

Name of the Vulnerable Software and Affected Versions Insyde H2O UEFI firmware affected versions not specified Description A flaw exists in the digital signature verification process within Insyde H2O UEFI firmware. This issue does not properly validate variable attributes, allowing an attacker t...

NewStart CGSL MAIN 7.02 : grub2 Multiple Vulnerabilities (NS-SA-2025-0082)

The remote NewStart CGSL host, running version MAIN 7.02, has grub2 packages installed that are affected by multiple vulnerabilities: - A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to...

CVE-2025-47827

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

CVE-2025-47827

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

CVE-2025-47827

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

CVE-2025-47827

In IGEL OS versions prior to 11, a cryptographic signature verification vulnerability in the igel-flash-driver module allows for a Secure Boot bypass . An attacker can leverage this flaw to mount a crafted root filesystem from an unverified SquashFS image, compromising the system's chain of trust...

CVE-2025-47827

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

CVE-2025-47827

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

CVE-2025-47827: Improper Verification of Cryptographic Signature

In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...

PT-2025-23933

Name of the Vulnerable Software and Affected Versions IGEL OS versions prior to 11 Description IGEL OS versions prior to 11 contain a flaw in the igel-flash-driver module that improperly verifies cryptographic signatures during the Secure Boot process. This allows a crafted root filesystem to be...

CVE-2024-7784

During internal Axis Security Development Model ASDM threat-modelling, a flaw was found in the protection for device tampering commonly known as Secure Boot in AXIS OS making it vulnerable to a sophisticated attack to bypass this protection. To Axis' knowledge, there are no known exploits of the...

CVE-2024-37386

An issue was discovered in Stormshield Network Security SNS 4.0.0 through 4.3.25, 4.4.0 through 4.7.5, and 4.8.0. Certain manipulations allow restarting in single-user mode despite the activation of secure boot. The following versions fix this: 4.3.27, 4.7.6, and 4.8.2...

CVE-2024-6564

Buffer overflow in "rcardevinit" due to using due to using untrusted data rcarimagenumber as a loop counter before verifying it against RCARMAXBL3XIMAGE. This could lead to a full bypass of secure boot...

CVE-2024-20265

A vulnerability in the boot process of Cisco Access Point AP Software could allow an unauthenticated, physical attacker to bypass the Cisco Secure Boot functionality and load a software image that has been tampered with on an affected device. This vulnerability exists because unnecessary commands...

CVE-2024-21482

Memory corruption during the secure boot process, when the bootm command is used, it bypasses the authentication of the kernel/rootfs image...

CVE-2024-1633

During the secure boot, bl2 the second stage of the bootloader loops over images defined in the table “bl2memparamsdescs”. For each image, the bl2 reads the image length and destination from the image’s certificate. Because of the way of reading from the image, which base on 32-bit unsigned integ...

Security update for s390-tools

This update for s390-tools fixes the following issues: Revendored vendor.tar.zst CVE-2025-3416: Fixed use-after-free in Md::fetch and Cipher::fetch in rust-openssl crate bsc1242622 Added the new IBM z17 9175 processor type The package is built with the new 4096bit RSA secure boot signing key. Pat...