3640 matches found
September 22, 2025—KB5068221 (OS Build 26100.6588) Out-of-band
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grub2: command/gpg: Use-after-free due to hooks not being removed on module unload
A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If...
grub2: UFS: Integer overflow may lead to heap based out-of-bounds write when handling symlinks
A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grubmalloc may be called with a smaller...
grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write and Read.
When reading the language .mo file in grubmofileopen, grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data o...
Moderate: Red Hat Security Advisory: grub2 security update
An update for grub2 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...
RHEL 10 : grub2 (RHSA-2025:16154)
The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:16154 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modula...
ALSA-2025:16154 Moderate: grub2 security update
The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. Security Fixes: grub2:...
EulerOS Virtualization 2.13.0 : grub2 (EulerOS-SA-2025-2165)
According to the versions of the grub2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is...
EulerOS Virtualization 2.13.1 : grub2 (EulerOS-SA-2025-2164)
According to the versions of the grub2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is...
⚡ Weekly Recap: Bootkit Malware, AI-Powered Attacks, Supply Chain Breaches, Zero-Days & More
In a world where threats are persistent, the modern CISO's real job isn't just to secure technology—it's to preserve institutional trust and ensure business continuity. This week, we saw a clear pattern: adversaries are targeting the complex relationships that hold businesses together, from suppl...
New HybridPetya Ransomware Bypasses UEFI Secure Boot With CVE-2024-7344 Exploit
Cybersecurity researchers have discovered a new ransomware strain dubbed HybridPetya that resembles the notorious Petya/NotPetya malware, while also incorporating the ability to bypass the Secure Boot mechanism in Unified Extensible Firmware Interface UEFI systems using a now-patched vulnerabilit...
Advisory ROSA-SA-2025-3000
software: grub2 2.06 WASP: ROSA-CHROME unaffected versions = grub2-2.06-24 affected versions grub2-2.06-24 CVE-ID: CVE-2024-45779 BDU-ID: 2025-03832 CVE-Crit: MEDIUM CVE-DESC.: A vulnerability in the BFS file system of the Grub2 operating system boot loader is related to reads outside the allowed...
September 9, 2025—KB5065430 (OS Build 10240.21128)
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September 9, 2025—KB5065509 (Monthly Rollup)
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September 9, 2025—KB5065507 (Monthly Rollup)
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September 9, 2025—KB5065468 (Monthly Rollup)
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KB5065435: Cumulative security update for Internet Explorer: September 9, 2025
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September 9, 2025—KB5065511 (Security-only update)
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