What is CVE-2024-55639?

CVE-2024-55639 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.3 onward and patched in 6.6.67, 6.12.6 and 6.13. CVE-2024-55639 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-55639?

CVE-2024-55639 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-2024-55639?

Yes, CVE-2024-55639 has been patched. Fixed versions include 6.6.67, 6.12.6 and 6.13. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-55639 actively exploited?

CVE-2024-55639 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-55639

Medium

In the Linux kernel, the following vulnerability has been resolved: net: renesas: rswitch: avoid use-after-put for a device tree node The device tree node saved in the rswitch_device structure is used at several driver locations. So passing this node to of_node_put() after the first use is wrong. Move of_node_put() for this node to exit paths.

Package Linux Kernel

Published 2025-01-11

Last modified 2025-10-16

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 6.3 and later are affected. Fixed in 6.6.67, 6.12.6, 6.13 and their respective stable series.

Affected from

≥ 6.3

Fixed in

✓ 6.6.67 6.6.x ✓ 6.12.6 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-55639 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/66b7e9f85b8459c823b11e9af69dbf4be5eb6be8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/92007a28f95413058a7268dc84e5f44b700165d1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/bf8c6755f02029d1eddc3ff19b870240f054afc7
Patch

Details

CVE ID CVE-2024-55639

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-01-11

Modified 2025-10-16

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-55639?

CVE-2024-55639 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.3 onward and has been patched in 6.6.67, 6.12.6 and 6.13. CVE-2024-55639 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-55639?

CVE-2024-55639 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-2024-55639?

Yes — CVE-2024-55639 has been patched. Fixed versions include 6.6.67, 6.12.6 and 6.13. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-55639 actively exploited?

No — CVE-2024-55639 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.