CVE-2023-31323
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Type Confusion in AMD Secure Processor XGMI TA Causes Memory Violation

Publication date: 2026-02-12

Last updated on: 2026-02-13

Assigner: Advanced Micro Devices Inc.

Description
Type confusion in the AMD Secure Processor (ASP) could allow an attacker to pass a malformed argument to the External Global Memory Interconnect Trusted Agent (XGMI TA) leading to a memory safety violation potentially resulting in loss of confidentiality, integrity, or availability.
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Meta Information
Published
2026-02-12
Last Modified
2026-02-13
Generated
2026-06-16
AI Q&A
2026-02-12
EPSS Evaluated
2026-06-14
NVD
CVE-2023-31323
EUVD
EUVD-2023-35634
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
amd secure_processor *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-843 The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
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Executive Summary

This vulnerability is a type confusion issue in the AMD Secure Processor (ASP). It allows an attacker to pass a malformed argument to the External Global Memory Interconnect Trusted Agent (XGMI TA), which can cause a memory safety violation.

Such a memory safety violation could lead to serious security problems including loss of confidentiality, integrity, or availability of the affected system.

Impact Analysis

The impact of this vulnerability can be significant as it may result in loss of confidentiality, integrity, or availability of your system.

  • Loss of confidentiality means sensitive information could be exposed.
  • Loss of integrity means data or system state could be altered maliciously.
  • Loss of availability means the system or service could be disrupted or made unavailable.
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