CVE-2023-20511

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Summary

CVECVE-2023-20511
StatePUBLISHED
AssignerAMD
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-31 19:16:44 UTC
Updated2026-09-03 16:37:52 UTC
DescriptionRelease 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.

Risk And Classification

Primary CVSS: v3.0 6.4 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.002330000 probability, percentile 0.140660000 (date 2026-09-07)

Problem Types: CWE-763 | CWE-763 CWE-763 Release of Invalid Pointer or Reference

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary6.4MEDIUMCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
3.0CNACVSS6.4MEDIUMCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AMD AMD Radeon Instinct MI25 Graphics Products unaffected Contact your AMD Customer Engineering representative Not specified
CNA AMD AMD Radeon PRO V620 Graphics Products unaffected Contact your AMD Customer Engineering representative Not specified

References

ReferenceSourceLinkTags
www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html [email protected] www.amd.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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