--- title: "Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flaws" url: https://daily.dev/posts/microsoft-june-2026-patch-tuesday-fixes-3-zero-day-200-flaws-uku3ubqkm source_url: https://www.bleepingcomputer.com/news/microsoft/microsoft-june-2026-patch-tuesday-fixes-3-zero-day-200-flaws type: article source: "BleepingComputer" published: 2026-06-09T18:02:22.031Z updated: 2026-06-18T21:23:00.868Z tags: ["microsoft", "windows", "vulnerability", "zero-day"] reading_time: 13 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flaws **[BleepingComputer](https://daily.dev/sources/bleepingcomputer)** · 13 min read · 0 upvotes · 0 comments ## Summary Microsoft's June 2026 Patch Tuesday addresses 200 security vulnerabilities across Windows, Office, Exchange Server, Remote Desktop Client, Hyper-V, and many other products. The update includes fixes for three publicly disclosed zero-day vulnerabilities. Critical-severity patches cover Remote Desktop Client RCE, Windows Hyper-V RCE, Windows Kernel RCE, Active Directory Domain Services RCE, DHCP Client RCE, HTTP.sys RCE, Windows Kerberos KDC RCE, and multiple Microsoft Office RCE flaws. Dozens of elevation of privilege, information disclosure, spoofing, and security feature bypass vulnerabilities are also patched across Windows components including BitLocker, Secure Boot, DWM Core Library, and WinSock drivers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-days](https://daily.dev/posts/microsoft-may-2026-patch-tuesday-fixes-120-flaws-no-zero-days-phndtxk8i) · BleepingComputer · 0 upvotes · 0 comments - [June 2026 Microsoft Patch Tuesday](https://daily.dev/posts/june-2026-microsoft-patch-tuesday-soc9er861) · Tenable Blog · 0 upvotes · 0 comments --- Tags: [#microsoft](https://daily.dev/tags/microsoft), [#windows](https://daily.dev/tags/windows), [#vulnerability](https://daily.dev/tags/vulnerability), [#zero-day](https://daily.dev/tags/zero-day) [View this post on daily.dev](https://daily.dev/posts/microsoft-june-2026-patch-tuesday-fixes-3-zero-day-200-flaws-uku3ubqkm)