Microsoft (bounty programs)
Top 100 siteKnown Exploited Vulnerabilities 377CVEs
103 linked to ransomware campaigns
Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.
Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file.
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
Microsoft Defender contains an unspecified vulnerability that allows for denial of service.
Microsoft Exchange Server contains a cross-site scripting vulnerability during web page generation in Outlook Web Access and when certain interaction conditions are met, arbitrary JavaScript can be executed in the browser context.
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
security.txt
- Contact
- https://msrc.microsoft.com/report/vulnerability/new
- Encryption
- https://msrc.microsoft.com/.well-known/csaf/openpgp/998D7EC1A516E3D17FF90480EF148D3CDE714E0D.asc
- Policy
- https://www.microsoft.com/en-us/msrc/bounty-safe-harbor
- Acknowledgments
- https://msrc.microsoft.com/update-guide/acknowledgement
- Languages
- en
- Expires
- Sep 23, 2026