Microsoft

Pierluigi Paganini June 04, 2026
Researcher Drops a New VS Code Zero-Day After Losing Trust in Microsoft’s Disclosure Process

A researcher publicly released a VS Code exploit within hours, citing past disputes with Microsoft over bug handling. The security researcher Ammar Askar found a new serious zero-day in Visual Studio Code, told a contact at GitHub about it, and published a working exploit one hour later. “Just by clicking a link, it’s possible for […]

Pierluigi Paganini May 29, 2026
Microsoft Calls the Zero-Day Dumps Irresponsible. The Researcher Says Microsoft Started It.

A researcher dropped 6 Windows zero-days with no warning. Three are now exploited in the wild. Microsoft is angry. The researcher says Microsoft ignored them first. Over the past month, a researcher going by Chaotic Eclipse, also known as Nightmare-Eclipse, publicly released details of six unpatched vulnerabilities in Windows components including Defender and BitLocker. No […]

Pierluigi Paganini May 27, 2026
Microsoft SharePoint Has a New RCE Flaw. If You Haven’t Patched Yet, Go Do That.

A critical vulnerability, tracked as CVE-2026-45659, in Microsoft SharePoint can allow attackers to achieve remote code execution with little effort. Microsoft released security updates to patch a high-severity SharePoint vulnerability, tracked as CVE-2026-45659 (CVSS score of 8.8), that could allow remote code execution. The flaw does not require complex conditions for exploitation, making it a […]

Pierluigi Paganini May 20, 2026
Microsoft issues YellowKey mitigation, no patch yet

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 […]

Pierluigi Paganini May 15, 2026
CVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero-day

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 […]

Pierluigi Paganini March 10, 2026
Microsoft Patch Tuesday security updates for March 2026 fixed 84 bugs

Microsoft Patch Tuesday security updates for March 2026 addressed 84 vulnerabilities in its products. None of the flaws are known to be exploited so far. Microsoft Patch Tuesday security updates for March 2026 addressed 84 vulnerabilities across its products. The IT giant addressed flaws across Windows, Office, Edge, Azure, SQL Server, Hyper-V, and ReFS. Including […]

Pierluigi Paganini February 10, 2026
Microsoft Patch Tuesday security updates for February 2026 fix six actively exploited zero-days

Microsoft Patch Tuesday security updates for February 2026 fix six actively exploited zero-day vulnerabilities. Microsoft Patch Tuesday security updates for February 2026 fix 58 new security flaws across Windows, Office, Azure, Edge, Exchange, Hyper-V, WSL, and other components, rising to 62 CVEs when third-party updates are included. Five vulnerabilities are Critical, two Moderate, and most […]

Pierluigi Paganini January 26, 2026
Emergency Microsoft update fixes in-the-wild Office zero-day

Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps. Microsoft released out-of-band security updates to address an actively exploited Office zero-day vulnerability tracked as CVE-2026-21509. The issue is a security feature bypass vulnerability that affects multiple Office versions, including Microsoft Office 2016, Microsoft Office 2019, […]

Pierluigi Paganini January 08, 2026
U.S. CISA adds HPE OneView and Microsoft Office PowerPoint flaws to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds HPE OneView and Microsoft Office PowerPoint flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added HPE OneView and Microsoft Office PowerPoint flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: CVE-2009-0556 is a memory corruption flaw […]

Pierluigi Paganini November 12, 2025
Microsoft Patch Tuesday security updates for November 2025 fixed an actively exploited Windows Kernel bug

Microsoft fixed over 60 flaws, including an actively exploited Windows kernel zero-day, in its latest Patch Tuesday updates. Microsoft’s Patch Tuesday security updates for November 2025 addressed 63 vulnerabilities impacting Windows and Windows Components, Office and Office Components, Microsoft Edge (Chromium-based), Azure Monitor Agent, Dynamics 365, Hyper-V, SQL Server, and the Windows Subsystem for Linux […]