# CVE-2023-20511

## Summary

- **CVE ID:** CVE-2023-20511
- **Severity:** MEDIUM
- **CVSS Score:** 6.4 (CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-763
- **Published:** Aug 31, 2026
- **Last Modified:** Sep 1, 2026

## Description

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.

## Affected Products

- AMD — AMD Radeon™ Instinct™ MI25 Graphics Products (Contact your AMD Customer Engineering representative)
- AMD — AMD Radeon™ PRO V620 Graphics Products (Contact your AMD Customer Engineering representative)

## References

- [CNA](https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 14.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._