Found in the wild: 2 Secure Boot exploits. Microsoft is patching only 1 of them.
Researchers have unearthed two publicly available exploits that completely evade protections offered by Secure Boot, the industry-wide mechanism for ensuring devices load only secure operating system images during the boot-up process. Microsoft is taking action to block one exploit and allowing the other one to remain a viable threat. As part of Tuesday's monthly security update routine, Microsoft patched CVE-2025-3052, a Secure Boot bypass vulnerability affecting more than 50 device makers. More than a dozen modules that allow devices from these manufacturers to run on Linux allow an attacker with physical access to turn off Secure Boot and, from there, [...]