Physical privilege escalation via default hardware key
Published Apr 8, 2026 · Updated Apr 8, 2026
Use of a default cryptographic key in Intel Trace Hub on affected Gemini Lake processors allows physically proximate attackers to escalate privileges. The affected hardware relies on a default cryptographic key; publicly reported reverse engineering extracted an SGX device-specific key. Exploitation requires CPUID 706A1 or 706A8, physical access, privileged access, high complexity, and special internal knowledge; it compromises system confidentiality and subsequent confidentiality and integrity.
Summary
What happened
Use of a default cryptographic key in Intel Trace Hub on affected Gemini Lake processors allows physically proximate attackers to escalate privileges. The affected hardware relies on a default cryptographic key; publicly reported reverse engineering extracted an SGX device-specific key. Exploitation requires CPUID 706A1 or 706A8, physical access, privileged access, high complexity, and special internal knowledge; it compromises system confidentiality and subsequent confidentiality and integrity.
The record
- CVE
- CVE-2026-20709
- Published
- Apr 8, 2026
- Updated
- Apr 8, 2026
- Vendor
- Topcon Positioning Systems, Inc.
- Product
- Intel Trace Hub
- Classifications
- CWE-1394
- Attack vector
- physical
- Privileges
- admin
Timeline
How it unfolded
- Apr 8, 2026CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=See references
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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