MSRC Team

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Microsoft Joins Open Source Security Foundation

Microsoft has invested in the security of open source software for many years and today I’m excited to share that Microsoft is joining industry partners to create the Open Source Security Foundation (OpenSSF), a new cross-industry collaboration hosted at the Linux Foundation. The OpenSSF brings together work from the Linux Foundation-initiated Core Infrastructure Initiative (CII), …

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July 2020 Security Update: CVE-2020-1350 Vulnerability in Windows Domain Name System (DNS) Server

Today we released an update for CVE-2020-1350, a Critical Remote Code Execution (RCE) vulnerability in Windows DNS Server that is classified as a ‘wormable’ vulnerability and has a CVSS base score of 10.0. This issue results from a flaw in Microsoft’s DNS server role implementation and affects all Windows Server versions. Non-Microsoft DNS Servers are not affected. Wormable vulnerabilities have the potential to spread via malware between vulnerable computers without user interaction. Windows DNS Server is a core networking component. While this …

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Access Misconfiguration for Customer Support Database

Today, we concluded an investigation into a misconfiguration of an internal customer support database used for Microsoft support case analytics. While the investigation found no malicious use, and although most customers did not have personally identifiable information exposed, we want to be transparent about this incident with all customers and reassure them that we are taking …

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January 2020 Security Updates: CVE-2020-0601

The January security updates include several Important and Critical security updates. As always, we recommend that customers update their systems as quickly as practical. Details for the full set of updates released today can be found in the Security Update Guide. We believe in Coordinated Vulnerability Disclosure (CVD) as proven industry best practice to address security vulnerabilities. Through a partnership …

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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 found no evidence to support these claims. In our investigations we found that the …

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Patch new wormable vulnerabilities in Remote Desktop Services (CVE-2019-1181/1182)

Today Microsoft released a set of fixes for Remote Desktop Services that include two critical Remote Code Execution (RCE) vulnerabilities, CVE-2019-1181 and CVE-2019-1182. Like the previously-fixed ‘BlueKeep’ vulnerability (CVE-2019-0708), these two vulnerabilities are also ‘wormable’, meaning that any future malware that exploits these could propagate from vulnerable computer to vulnerable computer without user interaction. The affected …

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