CVE-2024-21976

Local code execution via crafted NPU pointer

Published Nov 12, 2024 · Updated Aug 26, 2025

Improper input validation in AMD Ryzen AI Software before 1.2 allows local users to execute arbitrary code through the NPU driver. The driver inadequately validates a caller-supplied pointer before using it, but AMD has not disclosed the affected routine or precise pointer operation. Low-privileged local access is required, and successful exploitation crosses a security boundary with arbitrary-code-execution impact.

CVSS severity8.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper input validation in AMD Ryzen AI Software before 1.2 allows local users to execute arbitrary code through the NPU driver. The driver inadequately validates a caller-supplied pointer before using it, but AMD has not disclosed the affected routine or precise pointer operation. Low-privileged local access is required, and successful exploitation crosses a security boundary with arbitrary-code-execution impact.

The record

CVE
CVE-2024-21976
Published
Nov 12, 2024
Updated
Aug 26, 2025
Vendor
Advanced Micro Devices, Inc.
Product
AMD Ryzen AI Software
Classifications
CWE-20, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <1.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Advanced Micro Devices, Inc. · AMD Ryzen AI Softwareversion=0 <1.2

Published CVSS scores

8.8Advanced Micro Devices, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo