AUGUST 15, 2026
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Case File

CVE-2026-20763

MEDIUM · CVSS 4.6 EPSS 0.12%

Source: NVD + CISA KEV + EPSS · Published 2026-08-11 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

Intel TDX Guest software versions prior to 0.3.1 are vulnerable to a privilege escalation flaw due to incorrect calculations in user applications running in Ring 3. This vulnerability can be exploited by a privileged system software adversary with local access, requiring minimal complexity and no user interaction, potentially compromising system confidentiality, integrity, and availability. Organizations utilizing affected Intel TDX Guest software should prioritize remediation to mitigate the risk of exploitation.

CVE
CVE-2026-20763
Severity
MEDIUM
CVSS
4.6
EPSS
0.12%

Original NVD Description

Incorrect calculation 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.