Intel CPU Microcode 20260811 Release Fixes Eight Security Issues

Intel released CPU microcode update 20260811 addressing eight security vulnerabilities across multiple processor families. Key issues include: INTEL-SA-01379 (high-severity privilege escalation in Intel TDX on Xeon 6), INTEL-SA-01404 (TDX information disclosure on Xeon 6), INTEL-SA-01423 (load value injection via incorrect data forwarding during transient execution, affecting 10th Gen Core and newer), INTEL-SA-01428 (privilege escalation on all Core Ultra and Xeon 6 CPUs), INTEL-SA-01435 (Xeon 6 privilege escalation via Ring 3 access control flaw), INTEL-SA-01441 (denial of service on Core Ultra Series 2 and 3), INTEL-SA-01442 (Xeon privilege escalation due to incorrect control flow and improper input validation), and INTEL-SA-01443 (denial of service on 3rd Gen Xeon Scalable due to hardware logic race condition). The update also includes functional fixes and introduces the first microcode images for Bartlett Lake and Wildcat Lake processors.

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