What is CVE-2023-52864?

CVE-2023-52864 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 4.15 onward and patched in 4.19.299, 5.4.261, 5.10.201 and others. CVE-2023-52864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52864?

CVE-2023-52864 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-52864?

Yes, CVE-2023-52864 has been patched. Fixed versions include 4.19.299, 5.4.261, 5.10.201 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52864 actively exploited?

CVE-2023-52864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2023-52864

High

In the Linux kernel, the following vulnerability has been resolved: platform/x86: wmi: Fix opening of char device Since commit fa1f68db6ca7 ("drivers: misc: pass miscdevice pointer via file private data"), the miscdevice stores a pointer to itself inside filp->private_data, which means that private_data will not be NULL when wmi_char_open() is called. This might cause memory corruption should wmi_char_open() be unable to find its driver, something which can happen when the associated WMI device is deleted in wmi_free_devices(). Fix the problem by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container_of(). This also avoids wmi_char_open() picking a wrong WMI device bound to a driver with the same name as the original driver.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-09-24

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-787

CVE-2023-52864 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.15 and later are affected. Fixed in 4.19.299, 5.4.261, 5.10.201, 5.15.139, 6.1.63, 6.5.12, 6.6.2, 6.7 and their respective stable series.

Affected from

≥ 4.15

Fixed in

✓ 4.19.299 4.19.x ✓ 5.4.261 5.4.x ✓ 5.10.201 5.10.x ✓ 5.15.139 5.15.x ✓ 6.1.63 6.1.x ✓ 6.5.12 6.5.x ✓ 6.6.2 6.6.x ✓ 6.7

References

8 total

Kernel Git
https://git.kernel.org/stable/c/36d85fa7ae0d6be651c1a745191fa7ef055db43e

Patch
Kernel Git
https://git.kernel.org/stable/c/44a96796d25809502c75771d40ee693c2e44724e

Patch
Kernel Git
https://git.kernel.org/stable/c/9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203

Patch
Kernel Git
https://git.kernel.org/stable/c/cf098e937dd125c0317a0d6f261ac2a950a233d6

Patch
Kernel Git
https://git.kernel.org/stable/c/d426a2955e45a95b2282764105fcfb110a540453

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2023-52864

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-09-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52864?

CVE-2023-52864 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 4.15 onward and has been patched in 4.19.299, 5.4.261, 5.10.201 and others. CVE-2023-52864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52864?

CVE-2023-52864 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-52864?

Yes. CVE-2023-52864 has been patched. Fixed versions include 4.19.299, 5.4.261, 5.10.201 and others. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52864 actively exploited?

No. CVE-2023-52864 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.