CVE-2023-20560

Windows crash via null IOCTL buffer

Published Aug 15, 2023 · Updated Oct 8, 2024

Denial of service in AMD Ryzen Master before 2.11.2.2659 allows local users with administrative privileges to crash Windows. The Ryzen Master IOCTL handler insufficiently validates its input buffer and accepts a null value, which reaches a Windows crash path. Administrative access is required; the documented consequence is a Windows crash and loss of availability, not data access or code execution.

CVSS severity4.4
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in AMD Ryzen Master before 2.11.2.2659 allows local users with administrative privileges to crash Windows. The Ryzen Master IOCTL handler insufficiently validates its input buffer and accepts a null value, which reaches a Windows crash path. Administrative access is required; the documented consequence is a Windows crash and loss of availability, not data access or code execution.

The record

CVE
CVE-2023-20560
Published
Aug 15, 2023
Updated
Oct 8, 2024
Vendor
Advanced Micro Devices, Inc.
Product
AMD Ryzen Master
Classifications
CWE-20, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected version<2.11.2.2659

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Advanced Micro Devices, Inc. · AMD Ryzen Master<2.11.2.2659

Published CVSS scores

4.4NISTCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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