What is CVE-2024-54456?

CVE-2024-54456 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 6.5 onward and patched in 6.6.79, 6.12.16, 6.13.4 and others. CVE-2024-54456 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-54456?

CVE-2024-54456 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-2024-54456?

Yes, CVE-2024-54456 has been patched. Fixed versions include 6.6.79, 6.12.16, 6.13.4 and others. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-54456 actively exploited?

CVE-2024-54456 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-2024-54456

High

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client() name is char[64] where the size of clnt->cl_program->name remains unknown. Invoking strcat() directly will also lead to potential buffer overflow. Change them to strscpy() and strncat() to fix potential issues.

Package Linux Kernel

Published 2025-02-27

Last modified 2025-10-23

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-2024-54456 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 6.5 and later are affected. Fixed in 6.6.79, 6.12.16, 6.13.4, 6.14 and their respective stable series.

Affected from

≥ 6.5

Fixed in

✓ 6.6.79 6.6.x ✓ 6.12.16 6.12.x ✓ 6.13.4 6.13.x ✓ 6.14

References

4 total

Kernel Git
https://git.kernel.org/stable/c/19b3ca651b4b473878c73539febe477905041442

Patch
Kernel Git
https://git.kernel.org/stable/c/49fd4e34751e90e6df009b70cd0659dc839e7ca8

Patch
Kernel Git
https://git.kernel.org/stable/c/dd8830779b77f4d1206d28d02ad56a03fc0e78f7

Patch
Kernel Git
https://git.kernel.org/stable/c/e8e0eb5601d4a6c74c336e3710afe3a0348c469d

Patch

Details

CVE ID CVE-2024-54456

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-02-27

Modified 2025-10-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-54456?

CVE-2024-54456 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 6.5 onward and has been patched in 6.6.79, 6.12.16, 6.13.4 and others. CVE-2024-54456 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-54456?

CVE-2024-54456 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-2024-54456?

Yes. CVE-2024-54456 has been patched. Fixed versions include 6.6.79, 6.12.16, 6.13.4 and others. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-54456 actively exploited?

No. CVE-2024-54456 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.