CVE-2023-52819

Kernel data compromise via pseudo-flexible PowerPlay arrays

Published May 21, 2024 · Updated May 11, 2026

Out-of-bounds access in Linux kernel releases from 4.5 allows local users to expose or alter data or crash the system. Six trailing record arrays in pptable_v1_0.h are declared as one-element arrays even though the driver indexes them as dynamically sized tables, causing accesses beyond index zero. Reachability requires local low-privileged access and an affected Polaris or Tonga AMD GPU PowerPlay path; exploitation can compromise data or interrupt the host.

CVSS severity6.6
Medium
EPSS probability0.24%
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 Linux kernel releases from 4.5 allows local users to expose or alter data or crash the system. Six trailing record arrays in pptable_v1_0.h are declared as one-element arrays even though the driver indexes them as dynamically sized tables, causing accesses beyond index zero. Reachability requires local low-privileged access and an affected Polaris or Tonga AMD GPU PowerPlay path; exploitation can compromise data or interrupt the host.

The record

CVE
CVE-2023-52819
Published
May 21, 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. May 21, 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=4.5
  2. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <0f0e59075b5c22f1e871fbd508d6e4f495048356
  3. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <60a00dfc7c5deafd1dd393beaf53224f7256dad6
  4. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <7c68283f3166221af3df5791f0e13d3137a72216
  5. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <8c1dbddbfcb051e82cea0c197c620f9dcdc38e92
  6. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <a237675aa1e62bbfaa341c535331c8656a508fa1
  7. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <a63fd579e7b1c3a9ebd6e6c494d49b1b6cf5515e
  8. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <b3b8b7c040cf069da7afe11c5bd73b870b8f3d18
  9. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <d0725232da777840703f5f1e22f2e3081d712aa4
  10. Affected versionversion=c82baa28184356a75c0157129f88af42b2e7b695 <d50a56749e5afdc63491b88f5153c1aae00d4679

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.5; version=c82baa28184356a75c0157129f88af42b2e7b695 <0f0e59075b5c22f1e871fbd508d6e4f495048356; version=c82baa28184356a75c0157129f88af42b2e7b695 <60a00dfc7c5deafd1dd393beaf53224f7256dad6; version=c82baa28184356a75c0157129f88af42b2e7b695 <7c68283f3166221af3df5791f0e13d3137a72216; version=c82baa28184356a75c0157129f88af42b2e7b695 <8c1dbddbfcb051e82cea0c197c620f9dcdc38e92; version=c82baa28184356a75c0157129f88af42b2e7b695 <a237675aa1e62bbfaa341c535331c8656a508fa1; version=c82baa28184356a75c0157129f88af42b2e7b695 <a63fd579e7b1c3a9ebd6e6c494d49b1b6cf5515e; version=c82baa28184356a75c0157129f88af42b2e7b695 <b3b8b7c040cf069da7afe11c5bd73b870b8f3d18; version=c82baa28184356a75c0157129f88af42b2e7b695 <d0725232da777840703f5f1e22f2e3081d712aa4; version=c82baa28184356a75c0157129f88af42b2e7b695 <d50a56749e5afdc63491b88f5153c1aae00d4679

Published CVSS scores

6.6CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 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

T1499.004Application or System Exploitation

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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