Microsoft warns about a critical vulnerability in Windows Secure Boot

Microsoft has identified a critical vulnerability in the Windows secure boot certificates, labeled as CVE-2026-21265, which poses serious risks to the integrity of the device’s boot process. This situation arises from the expiration of certificates issued in 2011, which are essential for the secure operation of the secure boot trust chain

Microsoft has identified a critical vulnerability in Windows Secure Boot certificates, labeled as CVE-2026-21265, which poses serious risks to the integrity of device booting. This situation arises from the expiration of certificates issued in 2011, which are essential for the secure operation of the Secure Boot trust chain.

Update the devices

With a base CVSS v3.1 score of 6.4, the vulnerability requires local access, high privileges, and a high attack complexity, which partially reduces the likelihood of immediate exploitation. However, its existence raises an important alert, especially because the affected certificates are scheduled to expire in mid-2026. If the corresponding patches are not applied, devices could be vulnerable to attacks during the boot process.

In order to mitigate these risks, Microsoft released patches in its January 2026 Patch Tuesday update, aimed at replacing the at-risk certificates. Organizations should prioritize the implementation of these updates and check firmware compatibility to avoid boot issues after installing the patches. In its November 2025 notice, Microsoft emphasized the need to renew three key certificates to maintain boot security.

The company calls on organizations that manage IT updates, as well as those that use Microsoft-managed solutions, to take immediate action. The lack of updates can result in a vulnerability that compromises the security of devices at their most critical moment: during boot-up. In light of this situation, it is crucial for system administrators to act swiftly to protect their technological infrastructures.

Microsoft wants making links in Word easy after 30 years

Microsoft has announced a significant simplification in the process of adding hyperlinks in Word documents, aiming to make this task as easy as working with text. This update allows Word users on macOS and Windows to create links more efficiently, reducing the process from two steps to one. Until now, to convert a word or a piece of text into a hyperlink, it was necessary to select it, right-click, and choose the corresponding option from the context menu. Now using Microsoft Word is easier However, with this new functionality, the […]

Microsoft has announced a significant simplification in the process of adding hyperlinks in Word documents, aiming to make this task as easy as working with text.

This update allows Word users on macOS and Windows to create links more efficiently, reducing the process from two steps to one.

Until now, to convert a word or a piece of text into a hyperlink, it was necessary to select it, right-click, and choose the corresponding option from the context menu.

Using Microsoft Word is now easier

However, with this new functionality, users only need to highlight the desired word or phrase and paste the link directly over it, and Word will automatically convert it into a hyperlink. This approach aims to simplify daily tasks, allowing users to focus more on the content rather than on formatting.

This update is now available for Word users on macOS and Windows who have the software installed in its latest versions: version 16.104 (Build 25120915) or later for macOS, and version 2511 (Build 19530.20006) or later for Windows.

In addition,the new feature is already active in Word for the web, allowing the enhanced experience to be available to all users immediately.

Microsoft emphasizes that its goal is to make everyday tasks in Word as seamless as possible. According to the company, “we believe that the tasks you perform daily in Word, such as hyperlinking text, should feel effortless, so we have streamlined the entire process.” This means a reduction in the number of clicks required, which helps users maintain their workflow without interruptions.