What is the CVSS score of CVE-2023-31313?

CVE-2023-31313 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2023-31313?

Within 24 hours: Identify and inventory all systems running vulnerable AMD processors and document their criticality level. Within 7 days: Implement network segmentation to restrict privileged user access and disable unnecessary power management features where feasible; establish enhanced monitoring for anomalous SMU activity. Within 30 days: Coordinate with AMD for patch availability and test in non-production environments; review and strengthen privileged access controls and authentication mechanisms.

CVE-2023-31313

HIGH

Unintended Proxy or Intermediary ('Confused Deputy') (CWE-441)

2026-02-12 psirt@amd.com

RCE

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 12, 2026 - 15:16 nvd

HIGH 7.2

DescriptionCVE.org

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.