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The bugs could be exploited to elevate privileges to System or create a denial-of-service (DoS) condition.
The post Microsoft Patches Exploited UnDefend and RedSun Defender Zero-Days appeared first on SecurityWeek.
Microsoft acknowledged the YellowKey BitLocker bypass flaw and released mitigations, urging admins to disable autofstx.exe and enable TPM+PIN. A week after Chaotic Eclipse publicly dropped the YellowKey vulnerability, Microsoft acknowledged it and published a mitigation. Not a patch, a mitigation. The distinction matters, and we will get to why. The flaw, tracked as CVE-2026-45585 (CVSS […]
The ongoing TeamPCP software supply chain campaign has compromised the official Microsoft DurableTask Python client, a widely used package for orchestrating workflows in Python applications. Three versions of the durabletask package on PyPI, 1.4.1, 1.4…
Fox Tempest, a financially motivated threat actor, has been linked to a large-scale malware-signing-as-a-service (MSaaS) operation that abused Microsoft’s Artefact Signing platform to enable cybercriminals to distribute malicious software that appeared…
Microsoft is working on a fix for CVE-2026-45585 (aka “Yellowkey”), a vulnerability that can be used by attackers to bypass protections offered by BitLocker, the full-disk encryption feature built into Windows, and access users’ data….
Fox Tempest provides a service that cybercriminals use to distribute ransomware and other malware disguised as legitimate software.
The post Microsoft Disrupts Malware-Signing Service Run by ‘Fox Tempest’ appeared first on SecurityWeek.
Microsoft is rolling out a key security change in its Edge browser to stop saved passwords from being loaded into memory as soon as the browser starts. The move comes after a security researcher showed that Edge was decrypting and keeping all stored pa…
Microsoft has announced it will retire the “Together mode” feature in Microsoft Teams, marking a shift toward simplified meeting layouts designed to improve performance, usability, and consistency across devices. The change, confirmed by Microsoft Prod…
Microsoft has acknowledged a growing issue affecting Windows 11 users: the May 2026 cumulative update (KB5089549) fails to install, resulting in error code 0x800f0922. The problem is affecting systems running Windows 11 versions 24H2 and 25H2, raising …
Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Microsoft Exchange […]