Microsoft Security Response

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Windows 11 Copilot Windows Update Cybersecurity Privacy

3 weeks ago 1 min read

CVE-2026-40406: Windows TCP/IP Info Disclosure—Patch Priority Despite Sparse Details

Microsoft's Security Response Center (MSRC) dropped a brief advisory on May 12, 2026, for CVE-2026-40406, an information disclosure vulnerability buried in the Windows TCP/IP stack. Details are...

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CVE-2026-40406: Windows TCP/IP Info Disclosure—Patch Priority Despite Sparse Details

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