Is CVE-2023-31313 actively exploited?

No active exploitation of CVE-2023-31313 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-31313 be exploited remotely?

No. CVE-2023-31313 requires local access to exploit.

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

CVE-2023-31313 has a CVSS score of 7.2 (HIGH) and an EPSS exploitation probability of 0.01%.

HOME VULNERABILITIESCVE-2023-31313

HIGH

CVE-2023-31313

CWE-441Published: February 12, 2026· Updated: Feb 13, 2026

7.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official 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.

NVD Source

Technical Analysis

CVE-2023-31313 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.2.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.