How severe is CVE-2023-31313?

CVE-2023-31313 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-31313 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-31313?

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-2023-31313 have an EU (EUVD) identifier?

Yes. CVE-2023-31313 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35624.

When was CVE-2023-31313 published?

CVE-2023-31313 was published on 2026-02-12 and last updated on 2026-06-17.

CVE-2023-31313

CVE-2023-31313 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. 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-441.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-35624
Weakness: CWE-441
Published: 2026-02-12
Last modified: 2026-06-17

Description

An unintended proxy or intermediary in the AMD power management firmware (PMFW) could allow a privileged attacker to send malformed messages to the system management unit (SMU) potentially resulting in arbitrary code execution.

Frequently asked questions

What is CVE-2023-31313?: An unintended proxy or intermediary in the AMD power management firmware (PMFW) could allow a privileged attacker to send malformed messages to the system management unit (SMU) potentially resulting in arbitrary code execution.
How severe is CVE-2023-31313?: CVE-2023-31313 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-31313 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-31313?: 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-2023-31313 have an EU (EUVD) identifier?: Yes. CVE-2023-31313 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35624.
When was CVE-2023-31313 published?: CVE-2023-31313 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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