The May 2023 cumulative update adds protection against the BlackLotus bootkit, a malicious UEFI bootkit that can be used to bypass Secure Boot and run malicious code on Windows 10 devices. It includes fixes for many other security issues as well.
May 2023 Cumulative Update Explained
Microsoft recently released the May 2023 cumulative update, which includes a range of security fixes and enhancements. One of the most important updates is the mitigation of the Secure Boot UEFI bootkit, which is covered in CVE-2023-24932. This update adds a new Secure Boot policy to the system, which prevents the bootkit from being loaded and also detects it if it is already present.What’s New?
The May 2023 cumulative update includes several other security fixes, such as a fix for a vulnerability in the Windows kernel that could allow an attacker to gain elevated privileges. Additionally, the update includes fixes for several other security issues, including a fix for a vulnerability in the Windows Hyper-V virtualization platform that could allow an attacker to gain elevated privileges. Finally, the update includes fixes for several other security issues, including a fix for a vulnerability in the Windows Remote Desktop Protocol (RDP) that could allow an attacker to gain access to a system.What’s Important to Know?
The BlackLotus bootkit is a very advanced bootkit and has been around for a few years. It is very difficult to detect and remove, and the May 2023 cumulative update adds protection against this bootkit by adding a new Secure Boot policy to the system. This policy will prevent the bootkit from being loaded and will also detect the bootkit if it is already present on the system.Key Quote
The May 2023 cumulative update adds protection against this bootkit by adding a new Secure Boot policy to the system. This policy will prevent the bootkit from being loaded and will also detect the bootkit if it is already present on the system.In conclusion, the May 2023 cumulative update is a critical update for all users, as it adds protection against the BlackLotus bootkit and several other security vulnerabilities. It is highly recommended that all users install this update as soon as possible to ensure their systems are secure.
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From the Core Infrastructure and Security Blog
