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Medium · 6.8 CVE-2026-20775 EUVD-2026-56494GHSA-5j5j-vmr5-mmmh

Uncaught exception for some Intel(R) TDX modules within Ring 0: Trust Domain may allow a denial of service. System software adversary with …

Published Aug 11, 2026 · Updated Aug 12, 2026 · Assigned by intel

Description

Uncaught exception for some Intel(R) TDX modules within Ring 0: Trust Domain may allow a denial of service. System software adversary with a privileged user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.

Affected products

VendorProductAffectedFixed
— Intel(R) TDX modules See references —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 microcode_ctl 4:20260812-1.0.3.el8_10 ELSA-2026-500239

Advisories 1

References