What is CVE-2024-56563?

CVE-2024-56563 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.10 onward and patched in 6.12.4 and 6.13. CVE-2024-56563 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56563?

CVE-2024-56563 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:H/I:N/A:N.

Is there a patch available for CVE-2024-56563?

Yes, CVE-2024-56563 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56563 actively exploited?

CVE-2024-56563 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-56563

Medium

In the Linux kernel, the following vulnerability has been resolved: ceph: fix cred leak in ceph_mds_check_access() get_current_cred() increments the reference counter, but the put_cred() call was missing.

Package Linux Kernel

Published 2024-12-27

Last modified 2025-09-23

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

High

Integrity

None

Availability

None

Vector string

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

Affected versions

Linux kernel versions 6.10 and later are affected. Fixed in 6.12.4, 6.13 and their respective stable series.

Affected from

≥ 6.10

Fixed in

✓ 6.12.4 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56563 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/c5cf420303256dcd6ff175643e9e9558543c2047
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e3d1c9e2b811f13bdbbb962c2b17a6091c28522c
Patch

Details

CVE ID CVE-2024-56563

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-12-27

Modified 2025-09-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56563?

CVE-2024-56563 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.4 and 6.13. CVE-2024-56563 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56563?

CVE-2024-56563 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:H/I:N/A:N.
Is there a patch available for CVE-2024-56563?

Yes — CVE-2024-56563 has been patched. Fixed versions include 6.12.4 and 6.13. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56563 actively exploited?

No — CVE-2024-56563 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.