CVE-2024-46871

System crash via undersized DMUB callback arrays

Published Oct 9, 2024 · Updated May 11, 2026

Out-of-bounds access in the Linux kernel AMD display driver from 4.15 allows attackers to crash systems through DMUB notifications. AMDGPU_DMUB_NOTIFICATION_MAX is set to five although dmub_notification_type exposes six values, leaving dmub_callback and dmub_thread_offload one element too short. An AMD GPU and a notification with the sixth type are required; Red Hat reports that unprivileged local users cannot trigger the flaw under normal conditions.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in the Linux kernel AMD display driver from 4.15 allows attackers to crash systems through DMUB notifications. AMDGPU_DMUB_NOTIFICATION_MAX is set to five although dmub_notification_type exposes six values, leaving dmub_callback and dmub_thread_offload one element too short. An AMD GPU and a notification with the sixth type are required; Red Hat reports that unprivileged local users cannot trigger the flaw under normal conditions.

The record

CVE
CVE-2024-46871
Published
Oct 9, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 9, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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 versionversion=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <800a5ab673c4a61ca220cce177386723d91bdb37
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9f404b0bc2df3880758fb3c3bc7496f596f347d7
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <ad28d7c3d989fc5689581664653879d664da76f0
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c592b6355b9b57b8e59fc5978ce1e14f64488a98
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e1896f381d27466c26cb44b4450eae05cd59dfd0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <800a5ab673c4a61ca220cce177386723d91bdb37; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9f404b0bc2df3880758fb3c3bc7496f596f347d7; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <ad28d7c3d989fc5689581664653879d664da76f0; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c592b6355b9b57b8e59fc5978ce1e14f64488a98; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e1896f381d27466c26cb44b4450eae05cd59dfd0

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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