What is CVE-2025-38128?

CVE-2025-38128 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.13 onward and patched in 6.15.3 and 6.16. CVE-2025-38128 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38128?

CVE-2025-38128 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-2025-38128?

Yes, CVE-2025-38128 has been patched. Fixed versions include 6.15.3 and 6.16. If you are running Linux kernel 6.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38128 actively exploited?

CVE-2025-38128 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-38128

Medium

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands In 'mgmt_hci_cmd_sync()', check whether the size of parameters passed in 'struct mgmt_cp_hci_cmd_sync' matches the total size of the data (i.e. 'sizeof(struct mgmt_cp_hci_cmd_sync)' plus trailing bytes). Otherwise, large invalid 'params_len' will cause 'hci_cmd_sync_alloc()' to do 'skb_put_data()' from an area beyond the one actually passed to 'mgmt_hci_cmd_sync()'.

Package Linux Kernel

Published 2025-07-03

Last modified 2025-11-20

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 6.13 and later are affected. Fixed in 6.15.3, 6.16 and their respective stable series.

Affected from

≥ 6.13

Fixed in

✓ 6.15.3 6.15.x ✓ 6.16

References

The following references provide additional information about CVE-2025-38128 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/03f1700b9b4d4f2fed3165370f3c23db76553178
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9eeafd16d76a7642d12b3442a26c15cd345e12f7
Patch

Details

CVE ID CVE-2025-38128

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-07-03

Modified 2025-11-20

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38128?

CVE-2025-38128 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.13 onward and has been patched in 6.15.3 and 6.16. CVE-2025-38128 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38128?

CVE-2025-38128 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-2025-38128?

Yes — CVE-2025-38128 has been patched. Fixed versions include 6.15.3 and 6.16. If you are running Linux kernel 6.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38128 actively exploited?

No — CVE-2025-38128 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.