PT-2026-70296 · Intel · Tdx Guest

CVE-2026-20763

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Published

2026-08-11

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Updated

2026-08-12

CVSS v4.0

4.6

Medium

VectorAV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Intel(R) TDX Guest software versions prior to 0.3.1
Description An incorrect calculation within Ring 3: User Applications allows a privileged system software adversary to perform an escalation of privilege. This issue can be exploited via local access without requiring user interaction or special internal knowledge. The flaw may result in low impacts on the confidentiality, integrity, and availability of the vulnerable system.
Recommendations Update Intel(R) TDX Guest software to version 0.3.1 or later.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-20763

Affected Products

Tdx Guest