Microsoft security patch release for CVE-2026-42824
Security Patch Release
Summary
Hide ▲
Show ▼
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 SharePoint data through a crafted URL.
Related Happenings
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...
Microsoft June 2026 Patch Tuesday record 206-vulnerability update
Security Patch ReleaseAbout this happening: Microsoft shipped a record 206-vulnerability update for its software portfolio, including three publicly disclosed flaws. The release spans Critical and Important...
Microsoft June 2026 Patch Tuesday record security update bundle
Security Patch Release
H score36
First: 10.06.2026 01:07
Last: 10.06.2026 01:07
Sources 1
About this happening:
Microsoft released a record Patch Tuesday bundle for June 2026 that patches nearly 200 security holes across Windows operating systems and supported software,...
Microsoft June 2026 Patch Tuesday record security update bundle
Security Patch ReleaseAbout this happening: Microsoft released a record Patch Tuesday bundle for June 2026 that patches nearly 200 security holes across Windows operating systems and supported software,...
Microsoft security patch release for CVE-2026-45586
Security Patch Release
H score41
First: 09.06.2026 20:57
Last: 09.06.2026 20:57
Sources 1
About this happening:
Microsoft's June 2026 Patch Tuesday delivers 200 flaw fixes across Windows and related products, including six zero-days and one actively exploited vulnerability....
Microsoft security patch release for CVE-2026-45586
Security Patch ReleaseAbout this happening: Microsoft's June 2026 Patch Tuesday delivers 200 flaw fixes across Windows and related products, including six zero-days and one actively exploited vulnerability....
Microsoft June 2026 Patch Tuesday (200 flaws, 3 zero-days)
Security Patch Release
H score37
First: 09.06.2026 20:57
Last: 09.06.2026 20:57
Sources 1
About this happening:
Microsoft released its June 2026 Patch Tuesday, delivering security updates for 200 flaws and three publicly disclosed zero-days across Windows and related compone...
Microsoft June 2026 Patch Tuesday (200 flaws, 3 zero-days)
Security Patch ReleaseAbout this happening: Microsoft released its June 2026 Patch Tuesday, delivering security updates for 200 flaws and three publicly disclosed zero-days across Windows and related compone...
Microsoft security patch release for CVE-2026-45659
Security Patch Release
H score23
First: 26.05.2026 14:49
Last: 26.05.2026 14:49
Sources 1
About this happening:
Microsoft released SharePoint updates for CVE-2026-45659, a remote code execution flaw that could let an authenticated attacker run code over the network without eleva...
Microsoft security patch release for CVE-2026-45659
Security Patch ReleaseAbout this happening: Microsoft released SharePoint updates for CVE-2026-45659, a remote code execution flaw that could let an authenticated attacker run code over the network without eleva...
Timeline
-
15.06.2026 16:00 3 articles · 1mo ago
Microsoft fixes SearchLeak in Microsoft 365 Copilot Enterprise
Mitigation Patch UpdateMicrosoft addressed SearchLeak in Microsoft 365 Copilot Enterprise and assigned CVE-2026-42824 a critical rating. The fix closes a chain that could let a crafted URL expose data from a target's mailbox, OneDrive, or SharePoint account, and no user action is required to mitigate the threat.
Show sources
- New attack turned Microsoft 365 Copilot into 1-click data theft tool — www.bleepingcomputer.com — 15.06.2026 16:00
- New attack turned Microsoft 365 Copilot into 1-click data theft tool — www.bleepingcomputer.com — 15.06.2026 16:00
- One-Click Microsoft 365 Copilot Flaw Could Have Let Attackers Steal Emails, Files, and MFA Codes — thehackernews.com — 15.06.2026 18:09