What is CVE-2023-52763?

CVE-2023-52763 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.0 onward and patched in 5.15.140, 6.1.64, 6.5.13 and others. CVE-2023-52763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52763?

CVE-2023-52763 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-52763?

Yes, CVE-2023-52763 has been patched. Fixed versions include 5.15.140, 6.1.64, 6.5.13 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52763 actively exploited?

CVE-2023-52763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-52763

Medium

In the Linux kernel, the following vulnerability has been resolved: i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data. The `i3c_master_bus_init` function may attach the I2C devices before the I3C bus initialization. In this flow, the DAT `alloc_entry`` will be used before the DAT `init`. Additionally, if the `i3c_master_bus_init` fails, the DAT `cleanup` will execute before the device is detached, which will execue DAT `free_entry` function. The above scenario can cause the driver to use DAT_data when it is NULL.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-09-19

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.0 and later are affected. Fixed in 5.15.140, 6.1.64, 6.5.13, 6.6.3, 6.7 and their respective stable series.

Affected from

≥ 5.0

Fixed in

✓ 5.15.140 5.15.x ✓ 6.1.64 6.1.x ✓ 6.5.13 6.5.x ✓ 6.6.3 6.6.x ✓ 6.7

References

5 total

Kernel Git
https://git.kernel.org/stable/c/39c71357e68e2f03766f9321b9f4882e49ff1442

Patch
Kernel Git
https://git.kernel.org/stable/c/3cb79a365e7cce8f121bba91312e2ddd206b9781

Patch
Kernel Git
https://git.kernel.org/stable/c/b53e9758a31c683fc8615df930262192ed5f034b

Patch
Kernel Git
https://git.kernel.org/stable/c/e64d23dc65810be4e3395d72df0c398f60c991f9

Patch
Kernel Git
https://git.kernel.org/stable/c/eed74230435c61eeb58abaa275b1820e6a4b7f02

Patch

Details

CVE ID CVE-2023-52763

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-09-19

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52763?

CVE-2023-52763 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.0 onward and has been patched in 5.15.140, 6.1.64, 6.5.13 and others. CVE-2023-52763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52763?

CVE-2023-52763 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-52763?

Yes. CVE-2023-52763 has been patched. Fixed versions include 5.15.140, 6.1.64, 6.5.13 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52763 actively exploited?

No. CVE-2023-52763 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.