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Microsoft June 2026 Patch Tuesday (200 flaws, 3 zero-days)

Security Patch Release
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Last updated
Happening score
H score 37
1 unique sources, 1 articles

Summary

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Microsoft released its June 2026 Patch Tuesday, delivering security updates for 200 flaws and three publicly disclosed zero-days across Windows and related components. The release includes multiple Critical issues and several remote code execution fixes, making prompt deployment important for exposed Microsoft environments.

Related Happenings

Microsoft Corp. security patch release for CVE-2026-56155

Security Patch Release
H score48 First: 14.07.2026 22:22 Last: 14.07.2026 22:22 Sources 1

About this happening: Microsoft released July 2026 Patch Tuesday updates that close at least 570 security holes in Windows and other software, expanding the remediation burden for defen...

Microsoft July 2026 Patch Tuesday security updates (570 flaws, 3 zero-days)

Security Patch Release
H score36 First: 14.07.2026 21:01 Last: 14.07.2026 21:01 Sources 1

About this happening: Microsoft's July 2026 Patch Tuesday released security updates for 570 flaws, including three zero-days and two vulnerabilities exploited in attacks, creating immed...

Microsoft security patch release for CVE-2026-42824

Security Patch Release
H score30 First: 15.06.2026 16:00 Last: 15.06.2026 16:00 Sources 1

About this happening: Microsoft's fix for SearchLeak in Microsoft 365 Copilot Enterprise closed a critical flaw tied to CVE-2026-42824 that could expose mailbox, OneDrive, and SharePo...

Microsoft Windows June 2026 Patch Tuesday zero-day fixes (multiple vulnerabilities)

Security Patch Release
H score40 First: 10.06.2026 12:57 Last: 10.06.2026 12:57 Sources 1

About this happening: Microsoft's June 2026 Patch Tuesday fixed three Windows zero-days that could yield SYSTEM access or bypass BitLocker on vulnerable systems.

Microsoft June 2026 Patch Tuesday record 206-vulnerability update

Security Patch Release
H score55 First: 10.06.2026 12:38 Last: 10.06.2026 12:38 Sources 1

About this happening: Microsoft shipped a record 206-vulnerability update for its software portfolio, including three publicly disclosed flaws. The release spans Critical and Important...

Timeline

  1. 09.06.2026 20:57 2 articles · 1mo ago

    Microsoft releases June 2026 Patch Tuesday with 200 fixes and three zero-days

    Mitigation Patch Update

    Microsoft ships its June 2026 Patch Tuesday, delivering security updates for 200 flaws and three publicly disclosed zero-day vulnerabilities across Windows and related components. The release includes CVE-2026-45586 in Windows Collaborative Translation Framework (CTFMON), CVE-2026-49160 in HTTP.sys and HTTP/2, and CVE-2026-50507 in Windows BitLocker; Microsoft says none of the zero-days are known to have been exploited in attacks. The HTTP/2 issue adds a new MaxHeadersCount registry setting for limiting accepted headers, and the BitLocker bypass affects Windows 11 and Windows Server 2022/2025 systems that rely on TPM-only protection.

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