CVE-2023-52825

Kernel memory corruption via SVM buffer race

Published May 21, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel's amdkfd SVM code allows local users to corrupt kernel memory through a VRAM buffer release race. Asynchronous MMU and system-RAM migration callbacks can both release prange->svm_bo because the operation is not serialized. Exploitation requires local low-privileged access to affected AMD KFD SVM operations; successful timing can crash the kernel or compromise its memory.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel's amdkfd SVM code allows local users to corrupt kernel memory through a VRAM buffer release race. Asynchronous MMU and system-RAM migration callbacks can both release prange->svm_bo because the operation is not serialized. Exploitation requires local low-privileged access to affected AMD KFD SVM operations; successful timing can crash the kernel or compromise its memory.

The record

CVE
CVE-2023-52825
Published
May 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=5.14
  2. Affected versionversion=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e
  3. Affected versionversion=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <709c348261618da7ed89d6c303e2ceb9e453ba74
  4. Affected versionversion=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <7d43cdd22cd81a2b079e864c4321b9aba4c6af34
  5. Affected versionversion=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <c772eacbd6d0845fc922af8716bb9d29ae27b8cf
  6. Affected versionversion=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <fc0210720127cc6302e6d6f3de48f49c3fcf5659

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e; version=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <709c348261618da7ed89d6c303e2ceb9e453ba74; version=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <7d43cdd22cd81a2b079e864c4321b9aba4c6af34; version=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <c772eacbd6d0845fc922af8716bb9d29ae27b8cf; version=e49fe4040a10c1cd3b215c511f658d15aa7c8be9 <fc0210720127cc6302e6d6f3de48f49c3fcf5659

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5CISA-ADPCVSS: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 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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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

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Your stack

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