How severe is CVE-2023-31323?

CVE-2023-31323 has a CVSS 4.0 base score of 8.4, rated high severity.

Is CVE-2023-31323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-31323?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-31323 have an EU (EUVD) identifier?

Yes. CVE-2023-31323 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35634.

When was CVE-2023-31323 published?

CVE-2023-31323 was published on 2026-02-12 and last updated on 2026-06-17.

CVE-2023-31323

CVE-2023-31323 is a high-severity vulnerability with a CVSS 4.0 base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-843.

Key facts

Severity: High (CVSS 4.0 base score 8.4)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-35634
Weakness: CWE-843
Published: 2026-02-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-31323?: 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.
How severe is CVE-2023-31323?: CVE-2023-31323 has a CVSS 4.0 base score of 8.4, rated high severity.
Is CVE-2023-31323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-31323?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-31323 have an EU (EUVD) identifier?: Yes. CVE-2023-31323 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35634.
When was CVE-2023-31323 published?: CVE-2023-31323 was published on 2026-02-12 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html

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