VulnerabilityBleeping Computer
8.5 — CRITICAL
Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
Today is Microsoft's July 2026 Patch Tuesday, and with it comes security updates for a record-breaking 570 flaws, including two zero-day vulnerabilities exploited in attacks and one publicly disclosed. [...]
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
Microsoft released a massive July 2026 Patch Tuesday, addressing 570 flaws and three zero-day vulnerabilities, primarily affecting .NET, Active Directory, Azure services, and various software applications.
⚙️Technical Details
Affected Systems
.NETActive Directory Certificate Services (AD CS)Active Directory Domain ServicesAzure Active DirectoryAzure CycleCloudAzure Monitor AgentAzure Spring AppsCode Integrity DLL (ci.dll)Composite Image File System DriverContent Delivery ManagerDesktop Window ManagerExtensible Storage Engine (ESENT)GitHub CopilotGitHub Copilot and Visual StudioGitHub Copilot and Visual Studio CodeMicrosoft 365 Copilot for iOSMicrosoft Bing App for IOS
Attack Vectors
.NET Remote Code Execution VulnerabilityActive Directory Certificate Services Elevation of Privilege VulnerabilityWindows Active Directory Domain Services Denial of Service VulnerabilityAzure CycleCloud Elevation of Privilege VulnerabilityAzure Monitor Agent Metrics Extension Elevation of Privilege VulnerabilityAzure Spring Apps Elevation of Privilege VulnerabilityCode Integrity DLL (ci.dll) Elevation of Privilege VulnerabilityComposite Image File System driver (cimfs.sys) Information Disclosure VulnerabilityContent Delivery Manager Elevation of Privilege VulnerabilityDesktop Window Manager Elevation of Privilege VulnerabilityExtensible Storage Engine (ESENT) Elevation of Privilege VulnerabilityGitHub Copilot Remote Code Execution VulnerabilityGitHub Copilot and Visual Studio Code Information Disclosure Vulnerability
💥Impact Assessment
Severity: High
Who Is at Risk
.NET developers and usersActive Directory administratorsAzure service providersSoftware application users with GitHub Copilot integrationSeverity: High
🛡️Recommended Actions
1Apply all available .NET patches immediately
2Enable audit logging on Active Directory Certificate Services (AD CS)
3Restrict Azure CycleCloud access to authorized personnel only
📦Affected Products
.NETActive Directory Certificate Services (AD CS)Active Directory Domain ServicesAzure Active DirectoryAzure CycleCloudAzure Monitor AgentAzure Spring AppsCode Integrity DLL (ci.dll)Composite Image File System DriverContent Delivery ManagerDesktop Window ManagerExtensible Storage Engine (ESENT)GitHub CopilotGitHub Copilot and Visual StudioGitHub Copilot and Visual Studio CodeMicrosoft 365 Copilot for iOSMicrosoft Bing App for IOS
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