GRUB2 Bootloader Vulnerabilities Expose Millions of Systems to Attacks

Summary: A series of critical vulnerabilities have been identified in GRUB2, the widely used boot loader for Linux distributions, potentially compromising millions of systems. These vulnerabilities could allow attackers to bypass security measures and execute arbitrary code, with some flaws enabling remote code execution during network boot sequences. System administrators are urged to update GRUB2 and associated components promptly to mitigate these risks.

Affected: GRUB2, major Linux distributions

Keypoints :

• Critical vulnerabilities range from heap overflows and use-after-free errors to integer overflows affecting various GRUB2 components.
• CVE-2025-0624 allows for remote code execution during network boot sequences, posing a severe threat.
• Patch updates are underway, and system administrators should prioritize implementing these updates to enhance security.