What is CVE-2023-52627?

CVE-2023-52627 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.6 onward and patched in 5.10.210, 5.15.149, 6.1.76 and others. CVE-2023-52627 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52627?

CVE-2023-52627 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-2023-52627?

Yes, CVE-2023-52627 has been patched. Fixed versions include 5.10.210, 5.15.149, 6.1.76 and others. If you are running Linux kernel 5.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52627 actively exploited?

CVE-2023-52627 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2023-52627

Medium

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7091r: Allow users to configure device events AD7091R-5 devices are supported by the ad7091r-5 driver together with the ad7091r-base driver. Those drivers declared iio events for notifying user space when ADC readings fall bellow the thresholds of low limit registers or above the values set in high limit registers. However, to configure iio events and their thresholds, a set of callback functions must be implemented and those were not present until now. The consequence of trying to configure ad7091r-5 events without the proper callback functions was a null pointer dereference in the kernel because the pointers to the callback functions were not set. Implement event configuration callbacks allowing users to read/write event thresholds and enable/disable event generation. Since the event spec structs are generic to AD7091R devices, also move those from the ad7091r-5 driver the base driver so they can be reused when support for ad7091r-2/-4/-8 be added.

Package Linux Kernel

Published 2024-03-26

Last modified 2025-04-29

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

Weakness type

CWE-476

CVE-2023-52627 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.6 and later are affected. Fixed in 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3, 6.8 and their respective stable series.

Affected from

≥ 5.6

Fixed in

✓ 5.10.210 5.10.x ✓ 5.15.149 5.15.x ✓ 6.1.76 6.1.x ✓ 6.6.15 6.6.x ✓ 6.7.3 6.7.x ✓ 6.8

References

7 total

Kernel Git
https://git.kernel.org/stable/c/020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f

Patch
Kernel Git
https://git.kernel.org/stable/c/137568aa540a9f587c48ff7d4c51cdba08cfe9a4

Patch
Kernel Git
https://git.kernel.org/stable/c/1eba6f7ffa295a0eec098c107043074be7cc4ec5

Patch
Kernel Git
https://git.kernel.org/stable/c/49f322ce1f265935f15e5512da69a399f27a5091

Patch
Kernel Git
https://git.kernel.org/stable/c/55aca2ce91a63740278502066beaddbd841af9c6

Patch

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2023-52627

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-26

Modified 2025-04-29

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52627?

CVE-2023-52627 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.6 onward and has been patched in 5.10.210, 5.15.149, 6.1.76 and others. CVE-2023-52627 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52627?

CVE-2023-52627 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-2023-52627?

Yes. CVE-2023-52627 has been patched. Fixed versions include 5.10.210, 5.15.149, 6.1.76 and others. If you are running Linux kernel 5.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52627 actively exploited?

No. CVE-2023-52627 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.