CVE-2024-46728

Service interruption via unchecked AUX interval index

Published Sep 18, 2024 · Updated May 11, 2026

Out-of-bounds access in the Linux AMD display driver allows local users to interrupt service during DisplayPort link training. configure_lttpr_mode_non_transparent decrements and iterates repeater indices without bounding them to the seven-element aux_rd_interval array. Low-privilege local access and the affected AMD display path are required; public sources identify availability loss but do not specify a crash or hang.

CVSS severity5.5
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

Out-of-bounds access in the Linux AMD display driver allows local users to interrupt service during DisplayPort link training. configure_lttpr_mode_non_transparent decrements and iterates repeater indices without bounding them to the seven-element aux_rd_interval array. Low-privilege local access and the affected AMD display path are required; public sources identify availability loss but do not specify a crash or hang.

The record

CVE
CVE-2024-46728
Published
Sep 18, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 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

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=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <48e0b68e2360b16edf2a0bae05c0051c00fbb48a
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <6c588e9350dd7a9fb97a56fe74852c9ecc44450c
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9ba2ea6337b4f159aecb177555a6a81da92d302e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <48e0b68e2360b16edf2a0bae05c0051c00fbb48a; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <6c588e9350dd7a9fb97a56fe74852c9ecc44450c; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9ba2ea6337b4f159aecb177555a6a81da92d302e

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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