CVE-2026-20763
4.2 · MEDIUMOverview
CVE-2026-20763 is a medium-severity vulnerability affecting intel trust_domain_extensions_guest. It was published on August 11, 2026 and has a CVSS 3.1 base score of 4.2 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from intel. Update trust_domain_extensions_guest to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| intel | trust_domain_extensions_guest | >= 0, < 0.3.1 | Affected |
Frequently Asked Questions
What is CVE-2026-20763?
CVE-2026-20763 is a medium-severity vulnerability affecting intel trust_domain_extensions_guest. It was published on August 11, 2026 and has a CVSS 3.1 base score of 4.2 (MEDIUM).
How severe is CVE-2026-20763?
This vulnerability has a CVSS 3.1 base score of 4.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-20763?
Check the references section for vendor advisories and patches from intel. Update trust_domain_extensions_guest to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-20763?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-20763 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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