What is CVE-2023-20511?

CVE-2023-20511 is a medium-severity vulnerability, classified under Release of Invalid Pointer or Reference. CVSS score: 6.4/10. Published 2026-08-31.

How severe is CVE-2023-20511?

Medium severity. CVSS v3 base score is 6.4 out of 10.

CVE-2023-20511

CVE-2023-20511

Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

References

psirt@amd.com

Frequently asked questions

What is CVE-2023-20511?: CVE-2023-20511 is a medium-severity vulnerability, classified under Release of Invalid Pointer or Reference. CVSS score: 6.4/10. Published 2026-08-31.
How severe is CVE-2023-20511?: Medium severity. CVSS v3 base score is 6.4 out of 10.