Windows 10 2016 build 14393.8783 (KB5073722) — release notes, known issues

Windows 10 · 2016 · Release · Security update (Patch Tuesday)

January 13, 2026—KB5073722 (OS Build 14393.8783)

All 2016 builds JSON — this build from the builds API

Known issues — reported on the forum

No problems reported on the forum for this build yet. Threads that name 14393.8783 or KB5073722 and describe a fault appear here automatically.

Coverage Secure Boot Certificate Expiration 2026: Update to Windows UEFI CA 2023 Mar 5, 2026 · names this build
Coverage OpenAI and Microsoft 2016 Cloud Brains: Azure GPU Race for AI Jan 14, 2026 · Windows 10 2016 coverage from this build's release window
Coverage Cloud Security Starts with Expertise: Lessons from RightScale 2016 Jan 16, 2026 · Windows 10 2016 coverage from this build's release window
Fix CVE-2016-9841: How zlib's inffast.c UB fix improves security Feb 18, 2026 · Windows 10 2016 coverage from this build's release window
Issue CVE-2016-9840: The Zlib Pointer Bug and the Correctness Fix Feb 18, 2026 · Windows 10 2016 coverage from this build's release window
Fix CVE-2016-3959: Go DSA Verify DoS Fix and Early Validation Feb 18, 2026 · Windows 10 2016 coverage from this build's release window
Coverage Azure Linux Lynx CVE-2016-9179 Attestation: Not All Microsoft Products Are Covered Feb 18, 2026 · Windows 10 2016 coverage from this build's release window
Coverage CVE-2016-8681: libdwarf DWARF parsing heap overflow in dwarfdump Feb 18, 2026 · Windows 10 2016 coverage from this build's release window

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