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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

IntelCVE-2026-20885

Intel platforms: improper authentication

Intel

CVE-2026-20885 · Published Aug 11, 2026 · updated Aug 31, 2026

High7.0
No fix yet
Intel advisory

Improper authentication in the Intel(R) TDX module for some Intel(R) platforms within Ring 0: Trust Domain may allow an information disclosure and escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. 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 (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts.

Affected versions

PackageAffectedFixed in
Intel(R) platforms
Product
<= See referencesNo fix yet
Details and references
CVSS 4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-287

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