Transparency on Microsoft Defender for Office 365 email security effectiveness

In today’s world, cyberattackers are relentless. They are often well-resourced, highly sophisticated, and constantly innovating, which means the effectiveness of cybersecurity solutions must be continuously evaluated, not assumed. Yet, despite the critical role email security plays in protecting...

Microsoft is named a Leader in the 2025 Gartner® Magic Quadrant™ for Endpoint Protection Platforms

Since 2022, the number of human-operated ransomware-linked encounters by organizations surged by 2.75x. Yet, Microsoft Defender for Endpoint has outpaced this rise, reducing the number of successful attacks by 3x, proving its power to turn the tide against evolving cyberthreats.1 Defender for...

Protecting customers from Octo Tempest attacks across multiple industries

In recent weeks, Microsoft has observed Octo Tempest, also known as Scattered Spider, impacting the airlines sector, following previous activity impacting retail, food services, hospitality organizations, and insurance between April and July 2025. This aligns with Octo Tempest’s typical patterns ...

📄 Microsoft Defender for Endpoint Privilege Escalation

Proof of concept exploit that demonstrates a privilege escalation vulnerability in Microsoft Defender for Endpoint MDE. !/bin/bash Exploit Title: Microsoft Defender for Endpoint MDE - Elevation of Privilege Date: 2025-05-27 Exploit Author: Rich Mirch Vendor Homepage:...

Microsoft Defender for Endpoint (MDE) - Elevation of Privilege

!/bin/bash Exploit Title: Microsoft Defender for Endpoint MDE - Elevation of Privilege Date: 2025-05-27 Exploit Author: Rich Mirch Vendor Homepage: https://learn.microsoft.com/en-us/defender-endpoint/ Software Link:...

Planning your move to Microsoft Defender portal for all Microsoft Sentinel customers

In November 2023, Microsoft announced our strategy to unify security operations by bringing the best of XDR and SIEM together. Our first step was bringing Microsoft Sentinel into the Defender portal, giving teams a single, comprehensive view of incidents, reducing queue management, enriched threa...

Discover how automatic attack disruption protects critical assets while ensuring business continuity

Traditional security solutions often operate in a one-size-fits-all alert model that treats every detection equally, regardless of how important the asset is. But not all assets are equal. Critical assets are systems governing access, identity, or sensitive data. They are essential to an...

CVE-2020-1002

An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Defender Elevation of Privilege Vulnerability'...

CVE-2020-1461

An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Defender Elevation of Privilege Vulnerability'...

CVE-2019-1255

A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'...

CVE-2019-1488

A security feature bypass vulnerability exists when Microsoft Defender improperly handles specific buffers, aka 'Microsoft Defender Security Feature Bypass Vulnerability'...

CVE-2025-47161

Microsoft Defender for Endpoint Elevation of Privilege Vulnerability...

CVE-2025-47161

Improper access control in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally...

CVE-2025-47161 Microsoft Defender for Endpoint Elevation of Privilege Vulnerability

...

CVE-2025-47161 Microsoft Defender for Endpoint Elevation of Privilege Vulnerability

...

CVE-2025-47161

CVE-2025-47161 affects Microsoft Defender for Endpoint for Linux. The vulnerability is described as improper access control enabling local privilege escalation by an authorized attacker. Connected sources document a PoC/exploit framework for this elevation of privilege and reference affected Linu...

CVE-2025-26684

External control of file name or path in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally...

CVE-2025-26685

Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network...

Microsoft Defender for Endpoint Elevation of Privilege Vulnerability

Improper access control in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally...

KLA83714 PE vulnerability in Microsoft System Center

An elevation of privilege vulnerability was found in Microsoft System Center. Malicious users can exploit this vulnerability to gain privileges. Original advisories CVE-2025-47161 Related products Microsoft-Defender-for-Endpoint-for-Linux CVE list CVE-2025-47161 critical Solution Install necessar...