Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. 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 (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.
Metrics
Affected Vendors & Products
References
History
Thu, 13 Aug 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Intel
Intel intel Processors |
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| Vendors & Products |
Intel
Intel intel Processors |
Wed, 12 Aug 2026 15:30:00 +0000
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| Metrics |
ssvc
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Wed, 12 Aug 2026 13:15:00 +0000
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| Title | Firmware Input Validation Flaw Allows Privilege Escalation on Xeon Processors |
Tue, 11 Aug 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. 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 (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts. | |
| Weaknesses | CWE-20 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: intel
Published: 2026-08-11T17:30:33.595Z
Updated: 2026-08-12T14:48:36.488Z
Reserved: 2025-12-09T04:00:18.785Z
Link: CVE-2026-20901
Updated: 2026-08-11T18:52:19.771Z
Status : Awaiting Analysis
Published: 2026-08-11T18:17:24.593
Modified: 2026-08-12T20:54:11.500
Link: CVE-2026-20901
No data.