CVE-2026-20765

What it is

Incorrect comparison for some Intel(R) TDX Guest software before version 0.3.1 within Ring 3: User Applications may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account. Limited direct impact.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-11 17:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-08-18 15:48 UTC Last updatedMost recent change to the record

Details

Published

2026-08-11 17:17 UTC

Last modified

2026-08-18 15:48 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-697

Record status

Analyzed

Affected

• Intel Trust Domain Extensions Guest < 0.3.1

Attack profile CVSS 4.0 · 4.6

Attack vector

Local

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

None

Confidentiality

Low

Integrity

Low

Availability

Low