CVE-2023-31308

CVE-2023-31308

A malicious virtual function can invoke the certain command handlers in the SMU, causing a denial of service due to out-of-bounds memory read.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.001 (0.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-31308: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-31308?
CVE-2023-31308 is a low-severity vulnerability, classified under Improper Validation of Array Index. CVSS score: 3.3/10. Published 2026-08-31.
How severe is CVE-2023-31308?
Low severity. CVSS v3 base score is 3.3 out of 10.