Top MSRC 2020 Q4 Security Researchers – Congratulations!

We’re excited to announce the top contributing researchers for the 2020 Fourth Quarter Q4! Congratulations to all of the researchers who made this quarter’s leaderboard and a huge thank you to everyone who continues to help secure our customers and the ecosystem. The top three researchers of the...

Prevent a worm by updating Remote Desktop Services (CVE-2019-0708)

Today Microsoft released fixes for a critical Remote Code Execution vulnerability, CVE-2019-0708, in Remote Desktop Services – formerly known as Terminal Services – that affects some older versions of Windows. The Remote Desktop Protocol RDP itself is not vulnerable. This vulnerability is...

March 2019 Security Update Release

Today, we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found on the Security Update Guide...

A Ride on the Wild Side with Hacking Heavyweight Sick Codes

Beverage of Choice: Krating Daeng Thai Red Bull Industry Influencer he Admires: Casey John Ellis What did you want to be when you grew up? A physician and nearly did Hobbies Present & Past: Motorcycling & Australian Football Bucket List: Continuing to discover new software Fun Fact: He currently...

Vulnerability mitigated in the third-party Data Connector used in Azure Synapse pipelines and Azure Data Factory (CVE-2022-29972)

Summary Microsoft recently mitigated a vulnerability in Azure Data Factory and Azure Synapse pipelines. The vulnerability was specific to the third-party Open Database Connectivity ODBC driver used to connect to Amazon Redshift in Azure Synapse pipelines and Azure Data Factory Integration Runtime...

Guidance for CVE-2022-23278 spoofing in Microsoft Defender for Endpoint

Microsoft released a security update to address CVE-2022-23278 in Microsoft Defender for Endpoint. This important class spoofing vulnerability impacts all platforms. We wish to thank Falcon Force for the collaboration on addressing this issue through coordinated vulnerability disclosure...

April 2021 Update Tuesday packages now available

Today is Update Tuesday – our commitment to provide a predictable monthly schedule to release updates and provide the latest protection to our customers. Update Tuesday is a monthly cycle when Microsoft releases patches for vulnerabilities that we have found proactively or that have been disclose...

One-Click Microsoft Exchange On-Premises Mitigation Tool – March 2021

We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there...

On-Premises Exchange Server Vulnerabilities Resource Center – updated March 25, 2021

MSRC / By MSRC Team / March 2, 2021 On March 2nd, we released several security updates for Microsoft Exchange Server to address vulnerabilities that are being used in ongoing attacks. Due to the critical nature of these vulnerabilities, we recommend that customers protect their organizations by...

Attacks exploiting Netlogon vulnerability (CVE-2020-1472)

Microsoft has received a small number of reports from customers and others about continued activity exploiting a vulnerability affecting the Netlogon protocol CVE-2020-1472 which was previously addressed in security updates starting on August 11, 2020. If the original guidance is not applied, the...

October 2019 security updates are available!

We have released the October security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder,...

Scalable infrastructure for investigations and incident response

Traditional computer forensics and cyber investigations are as relevant in the cloud as they are in on-premise environments, but the methods in which to access and perform such investigations differ. This post will describe some of the challenges of bringing on-premises forensics techniques to th...

A Reminder to Update Your Systems to Prevent a Worm

On May 14, Microsoft released fixes for a critical Remote Code Execution vulnerability, CVE-2019-0708, in Remote Desktop Services – formerly known as Terminal Services – that affects some older versions of Windows. In our previous blog post on this topic we warned that the vulnerability is...

Microsoft launches Identity Bounty program

Modern security depends today on collaborative communication of identities and identity data within and across domains. A customer’s digital identity is often the key to accessing services and interacting across the internet. Microsoft has invested heavily in the security and privacy of both our...

Microsoft’s Response to CVE-2022-22965 Spring Framework

Summary Summary Microsoft used the Spring Framework RCE, Early Announcement to inform analysis of the remote code execution vulnerability, CVE-2022-22965, disclosed on 31 Mar 2022. We have not to date noted any impact to the security of our enterprise services and have not experienced any degrade...

Announcing the Top MSRC 2021 Q2 Security Researchers – Congratulations!

We’re excited to announce the top contributing researchers for the 2021 Second Quarter Q2! Congratulations to all the researchers recognized in this quarter’s leaderboard and thank you to everyone who continues to help secure our customers and the ecosystem. The top three researchers of the 2021 ...

Additional information about CVE-2014-6324

Today Microsoft released update MS14-068 to address CVE-2014-6324, a Windows Kerberos implementation elevation of privilege vulnerability that is being exploited in-the-wild in limited, targeted attacks. The goal of this blog post is to provide additional information about the vulnerability, upda...

Microsoft Mitigates Outlook Elevation of Privilege Vulnerability

May 9, 2023 update: Releases for Microsoft Products has been updated with the release of CVE-2023-29324 - Security Update Guide - Microsoft - Windows MSHTML Platform Security Feature Bypass Vulnerability March 24, 2023 update: Impact Assessment has been updated to a link to Guidance for...

Kerberos KDC の脆弱性 (CVE-2020-17049) に対応するためのガイダンス

マイクロソフトは、2020 年 11 月 10 日 米国時間 に、Kerberos KDC Key Distribution Center に対する脆弱性情報 CVE-2020-17049 を公...

New and improved Security Update Guide!

We’re excited to announce a significant update to the Security Update Guide, our one-stop site for information about all security updates provided by Microsoft. This new version will provide a more intuitive user experience to help protect our customers regardless of what Microsoft products or...

[AD 管理者向け] CVE-2020-1472 Netlogon の対応ガイダンスの概要

2020 年 8 月の月例セキュリティ更新プログラム 2020 年 8 月 11 日 公開 米国時間 にて、Active Directory で利用され...

April 2019 Security Update Release

Today, we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found on the Security Update Guide. Tags Security Advisory Securi...

July 2018 Security Update Release

Today, we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found on the Security Update Guide...

Coordinated disclosure of vulnerability in Azure Container Instances Service

Microsoft recently mitigated a vulnerability reported by a security researcher in the Azure Container Instances ACI. Our investigation surfaced no unauthorized access to customer data. Out of an abundance of caution we notified customers with containers running on the same clusters as the...

Introducing Bounty Awards for Teams Mobile Applications Security Research

We are pleased to announce the addition of Microsoft Teams mobile applications to the Microsoft Applications Bounty Program. Through the expanded program we welcome researchers from across the globe to seek out and disclose any high impact security vulnerabilities they may find in Teams mobile...

MSRC Security Researcher Recognition: 2021

Wondering how to get into the 2021 MSRC Most Valuable Security Researcher list and get recognized during the Black Hat USA this August? Read on to learn more about the different paths you can take to get into the top researcher tiers. The MSRC Most Valuable Security Researcher MVR and MSRC...

Security Analysis of CHERI ISA

Is it possible to get to a state where memory safety issues would be deterministically mitigated? Our quest to mitigate memory corruption vulnerabilities led us to examine CHERI Capability Hardware Enhanced RISC Instructions, which provides memory protection features against many exploited...

November 2019 security updates are available!

We have released the November security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder,...

Announcing the Microsoft Edge Insider Bounty

This week, we released the first Beta preview of the next version of Microsoft Edge. Alongside this, Microsoft is excited to announce the launch of the Microsoft Edge Insider Bounty Program. We welcome researchers to seek out and disclose any high impact vulnerabilities they may find in the next...

CVE-2017-8759 のエクスプロイトの検出と無効化

本記事は、Microsoft Malware Protection Center のブログ “Exploit for CVE-2017-8759 detected and neutralized” 2017 年 9 月 12...

Point and Print Default Behavior Change

Our investigation into several vulnerabilities collectively referred to as “PrintNightmare” has determined that the default behavior of Point and Print does not provide customers with the level of security required to protect against potential attacks. Today, we are addressing this risk by changi...

Welcome to the second stage of BlueHat!

We’ve finished two incredible days of security trainings at the Living Computer Museum in Seattle. Now it’s time for the second part of BlueHat: the briefings at ShowBox SoDo. We’ve got a big day planned, so head on down. Please join us for breakfast we have doughnuts! and bacon! and cereal! when...

July 2019 Security Update Release

We have released the July security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide...

CVE-2013-3906: a graphics vulnerability exploited through Word documents

Recently we become aware of a vulnerability of a Microsoft graphics component that is actively exploited in targeted attacks using crafted Word documents sent by email. Today we are releasing Security Advisory 2896666 which includes a proactive Fix it workaround for blocking this attack while we...

Microsoft mitigated exposure of internal information in a storage account due to overly-permissive SAS token

Summary As part of a recent Coordinated Vulnerability Disclosure CVD report from Wiz.io, Microsoft investigated and remediated an incident involving a Microsoft employee who shared a URL for a blob store in a public GitHub repository while contributing to open-source AI learning models. This URL...

Guidance for CVE-2022-23278 spoofing in Microsoft Defender for Endpoint

Microsoft released a security update to address CVE-2022-23278 in Microsoft Defender for Endpoint. This important class spoofing vulnerability impacts all platforms. We wish to thank Falcon Force for the collaboration on addressing this issue through coordinated vulnerability disclosure...

Continuing to Listen: Good News about the Security Update Guide API!

Based on user feedback we have simplified programmatic access to the security update data by removing the authentication and API-Key requirements when using the CVRF API. You will no longer have to log in to obtain a personal API key to access the data. Were happy to make this valuable public...

Congratulating Our Top 2020 Q1 Security Researchers!

Following the second Security Researcher Quarterly Leaderboard and the 2020 MSRC Most Valuable Security Researchers criteria we published in February 2020, we are excited to announce the 2020 First Quarter Q1 Security Researcher Leaderboard, listing our top contributing researchers for the last...

Announcing the Security Researcher Quarterly Leaderboard

Right before Black Hat USA 2019, we announced our new researcher recognition program, and at Black Hat we announced the top researchers from the previous twelve months. Since it’s easier to track your progress with regular updates than with just an annual report, we are excited to announce the MS...

BlueHat Asia 2025: Closing soon: Submit your papers by September 5, 2025

The next chapter of the Microsoft Security Response Center’s MSRC BlueHat security conference is fast approaching. BlueHat Asia 2025 will take place in Bengaluru, India, on November 5 – 6, 2025 and the Call for Papers is now open. Submissions will be accepted through September 5, 2025. Now in its...

Congratulations to the MSRC 2025 Most Valuable Security Researchers!

The Microsoft Researcher Recognition Program offers public thanks and recognition to security researchers who help protect our customers through discovering and sharing security vulnerabilities under Coordinated Vulnerability Disclosure. Today, we are excited to recognize this year’s Most Valuabl...

Toward greater transparency: Unveiling Cloud Service CVEs

Welcome to the second installment in our series on transparency at the Microsoft Security Response Center MSRC. In this ongoing discussion, we discuss our commitment to provide comprehensive vulnerability information to our customers. At MSRC, our mission is to protect our customers, communities,...

Guidance related to Secure Boot Manager changes associated with CVE-2023-24932

Summary Today, Microsoft is releasing CVE-2023-24932, and associated configuration guidance, to address a Secure Boot bypass vulnerability used by the BlackLotus bootkit to exploit CVE-2022-21894. Customers will need to closely follow the configuration guidance to fully protect against this...

Mitigation for Azure Storage SDK Client-Side Encryption Padding Oracle Vulnerability

Summary Summary Google informed Microsoft under Coordinated Vulnerability Disclosure CVD of a padding oracle vulnerability that may affect customers using Azure Storage SDK for Python, .NET, Java client-side encryption CVE-2022-30187. To mitigate this vulnerability, we released a new General...

Additional Guidance Regarding OMI Vulnerabilities within Azure VM Management Extensions

Last updated on October 5, 2021: See revision history located at the end of the post for changes. On September 14, 2021, Microsoft released fixes for three Elevation of Privilege EoP vulnerabilities and one unauthenticated Remote Code Execution RCE vulnerability in the Open Management...

Black Hat 2020: See you in the Cloud!

It hardly feels like summer without the annual trip to Las Vegas for Black Hat USA. With this year’s event being totally cloud based, we won’t have the chance to catch up with security researchers, industry partners, and customers in person, an opportunity we look forward to every year. We’ll sti...

Machine Learning Security Evasion Competition 2020 Invites Researchers to Defend and Attack

Machine learning ML is an increasingly valuable tool in cyber security as adversaries continually evolve their tactics and techniques to evade detection. As machine learning has advanced and sophisticated ML models have been developed to assist security professionals in protecting the cloud,...

Customer Guidance for the Dopplepaymer Ransomware

Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymer ransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP BlueKeep, as ways in which this malware spreads. Our security research teams have investigated and...

Congratulations to the Top MSRC 2023 Q4 Security Researchers!

Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2023 Q4 Security Researcher Leaderboard are Yuki Chen,...

Awareness and guidance related to potential Service Fabric Explorer (SFX) v1 web client risk

Summary Microsoft was recently made aware of a Cross-Site Scripting XSS vulnerability CVE-2022-35829, that under limited circumstances, affects older versions of Service Fabric Explorer SFX. The current default SFX web client SFXv2 is not vulnerable to this attack. However, customers can manually...