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highWindowssecurity advisorym365_message_center · Oct 27, 2026
New MSRC blog: Microsoft’s response to compromised eMudhra certificate authority keys
Microsoft has issued updates to address the compromise of eMudhra certificate authority keys, impacting Windows and Microsoft Edge trust lists. This is critical for administrators managing disconnected devices.
“Services: Windows. <p>Microsoft has published a new blog post outlining our response to the compromise of eMudhra intermediate certificate authority keys, including changes to the Windows and Microsoft Edge trust lists.</p> <p>The Windows out-of-band updates are now available in the Microsoft Update Catalog. Administ…”
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vulnerability_managementendpoint_security
Audience
adminsecurity_engineer
Environment
cloudon_premises
Classification confidence: 95%
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