CVE-2026-20775: Denial of Service in Intel(R) TDX modules
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.
AI Analysis
Technical Summary
This vulnerability involves an uncaught exception in certain Intel(R) TDX modules operating within Ring 0: Trust Domain, which may allow a denial of service condition. Exploitation requires a system software adversary with privileged user access and involves a high complexity attack. The attack vector is local, requires no user interaction, and does not require special internal knowledge beyond privileged access. The vulnerability impacts system availability but does not affect confidentiality or integrity.
Potential Impact
The vulnerability impacts system availability by potentially causing a denial of service. There are no impacts on confidentiality or integrity according to the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.
CVE-2026-20775: Denial of Service in Intel(R) TDX modules
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.
CVSS v4.0
Score 6.8medium
Affected software
Intel(R) TDX modules
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an uncaught exception in certain Intel(R) TDX modules operating within Ring 0: Trust Domain, which may allow a denial of service condition. Exploitation requires a system software adversary with privileged user access and involves a high complexity attack. The attack vector is local, requires no user interaction, and does not require special internal knowledge beyond privileged access. The vulnerability impacts system availability but does not affect confidentiality or integrity.
Potential Impact
The vulnerability impacts system availability by potentially causing a denial of service. There are no impacts on confidentiality or integrity according to the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2025-12-09T04:00:18.792Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a7b546abf8831d539106a4e
Added to database: 08/11/2026, 16:57:14 UTC
Last enriched: 08/12/2026, 00:12:21 UTC
Last updated: 09/25/2026, 01:47:41 UTC
Views: 21
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