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498 result(s) for "Microsoft 365" — best match first.

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Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

BleepingComputer
BleepingComputer Vulnerabilities

Microsoft releases Windows 10 KB5126657 extended security update

Microsoft released the Windows 10 KB5126657 extended security update, which includes this month's record-breaking October 2026 Patch Tuesday fixes and a few bu…

Windows

The Hacker News
The Hacker News Vulnerabilities

Microsoft Defender's Own Driver Can Be Weaponized to Delete Security Software at Boot

Check Point Research has disclosed a technique that uses Microsoft Defender's own legitimately signed boot-time remediation driver to perform arbitrary kernel-…

Windows

The Hacker News
The Hacker News Vulnerabilities

Microsoft Patches 398 Flaws Including a Windows Driver Zero-Day Under Active Attack

Microsoft released its monthly security updates on Tuesday, and one of the flaws it closed is already being used in attacks.The bug sits in a core Windows kern…

Windows

The Hacker News
The Hacker News Vulnerabilities

Microsoft Says New Cybersecurity AI Model Helps MDASH Hit 95.95% at Half the Cost

Microsoft has launched its first cybersecurity-specific model inside MDASH, its multi-model vulnerability identification and remediation harness.The company sa…

The Hacker News
The Hacker News Vulnerabilities

Microsoft Says New Cybersecurity AI Model Helps MDASH Score 95.95% at Half the Cost

Microsoft has launched its first cybersecurity-specific model inside MDASH, its multi-model vulnerability identification and remediation harness.The company sa…

Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses
Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses Vulnerabilities

Azure DevOps MCP Flaw: How to Lock Down Your AI Review Agent Before Microsoft Patches It

A practical checklist for the Azure DevOps MCP flaw that lets hidden PR comments hijack AI coding agents, plus the configuration changes to make right now.Azur…

Azure

The Hacker News
The Hacker News Vulnerabilities

Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws

Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed as publicly known…

The Hacker News
The Hacker News Vulnerabilities

Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been actively e…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Microsoft Patches 59 Vulnerabilities Including Six Actively Exploited Zero-Days

Microsoft on Tuesday released security updates to address a set of 59 flaws across its software, including six vulnerabilities that it said have been exploited…

The Hacker News
The Hacker News Vulnerabilities

APT28 Uses Microsoft Office CVE-2026-21509 in Espionage-Focused Malware Attacks

The Russia-linked state-sponsored threat actor known as APT28 (aka UAC-0001) has been attributed to attacks exploiting a newly disclosed security flaw in Micro…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 43: duc Critical Fix for Stack Overflow CVE-2025-13654

Update to 1.4.6: fixes CVE-2025-13654

Linux

The Hacker News
The Hacker News Vulnerabilities

Microsoft Issues Security Fixes for 56 Flaws, Including Active Exploit and Two Zero-Days

Microsoft closed out 2025 with patches for 56 security flaws in various products across the Windows platform, including one vulnerability that has been activel…

Windows

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian LTS: Unbound CVE-2025-11411 Important DDoS Risk Fix DLA-4365-2

Yuxiao Wu, Yunyi Zhang, Baojun Liu and Haixin Duan discovered that the initial fix for CVE-2025-11411 as applied in DLA 4365-1 did not fully fix the vulnerabil…

Linux

The Hacker News
The Hacker News Vulnerabilities

Microsoft Fixes 63 Security Flaws, Including a Windows Kernel Zero-Day Under Active Attack

Microsoft on Tuesday released patches for 63 new security vulnerabilities identified in its software, including one that has come under active exploitation in …

Windows

The Hacker News
The Hacker News Vulnerabilities

Microsoft Issues Emergency Patch for Actively Exploited Critical WSUS Vulnerability

Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with a proof-of-con…

Windows

The Hacker News
The Hacker News Breaches & leaks

Microsoft Links Storm-1175 to GoAnywhere Exploit Deploying Medusa Ransomware

Microsoft on Monday attributed a threat actor it tracks as Storm-1175 to the exploitation of a critical security flaw in Fortra GoAnywhere software to facilita…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian 11: PAM Important DoS and Access Risk CVE-2024-22365 DLA-4306-1

Multiple vulnerabilities were found in PAM namespace module used to configure private namespaces for user sessions. CVE-2024-22365

Linux

The Hacker News
The Hacker News Vulnerabilities

Microsoft Discloses Exchange Server Flaw Enabling Silent Cloud Access in Hybrid Setups

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elev…

Exchange

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 41: Poppler Critical Patch for CVE-2025-32364 and CVE-2025-32365

This update fixes these CVEs: CVE-2025-32364 CVE-2025-32365 CVE-2024-56378

Linux

The Hacker News
The Hacker News Vulnerabilities

Microsoft Releases Urgent Patch for SharePoint RCE Flaw Exploited in Ongoing Cyber Attacks

Microsoft on Sunday released security patches for an actively exploited security flaw in SharePoint and also disclosed details of another vulnerability that it…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

nOAuth Vulnerability Still Affects 9% of Microsoft Entra SaaS Apps Two Years After Discovery

New research has uncovered continued risk from a known security weakness in Microsoft's Entra ID, potentially enabling malicious actors to achieve account take…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities

Microsoft Patches 67 Vulnerabilities Including WEBDAV Zero-Day Exploited in the Wild

Microsoft has released patches to fix 67 security flaws, including one zero-day bug in Web Distributed Authoring and Versioning (WebDAV) that it said has come …

The Hacker News
The Hacker News Vulnerabilities

Microsoft OneDrive File Picker Flaw Grants Apps Full Cloud Access — Even When Uploading Just One File

Cybersecurity researchers have discovered a security flaw in Microsoft's OneDrive File Picker that, if successfully exploited, could allow websites to access a…

The Hacker News
The Hacker News Vulnerabilities

CISA Warns of Suspected Broader SaaS Attacks Exploiting App Secrets and Cloud Misconfigs

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday revealed that Commvault is monitoring cyber threat activity targeting applications…

Microsoft 365 Azure