What is CVE-2025-38570?

CVE-2025-38570 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 6.14 onward and patched in 6.15.10, 6.16.1 and 6.17. CVE-2025-38570 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38570?

CVE-2025-38570 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-2025-38570?

Yes, CVE-2025-38570 has been patched. Fixed versions include 6.15.10, 6.16.1 and 6.17. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38570 actively exploited?

CVE-2025-38570 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2025-38570

High

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: unlink NAPIs from queues on error to open CI hit a UaF in fbnic in the AF_XDP portion of the queues.py test. The UaF is in the __sk_mark_napi_id_once() call in xsk_bind(), NAPI has been freed. Looks like the device failed to open earlier, and we lack clearing the NAPI pointer from the queue.

Package Linux Kernel

Published 2025-08-19

Last modified 2025-11-26

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-416

CVE-2025-38570 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.14 and later are affected. Fixed in 6.15.10, 6.16.1, 6.17 and their respective stable series.

Affected from

≥ 6.14

Fixed in

✓ 6.15.10 6.15.x ✓ 6.16.1 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-38570 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/21d3f8441c7f317b93ba6a8029610c8b7e3773db
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4b31bcb025cb497da2b01f87173108ff32d350d2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4b59f9deff3bdb52b223c85048f1d2924803b817
Patch

Details

CVE ID CVE-2025-38570

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-08-19

Modified 2025-11-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38570?

CVE-2025-38570 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 6.14 onward and has been patched in 6.15.10, 6.16.1 and 6.17. CVE-2025-38570 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38570?

CVE-2025-38570 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-2025-38570?

Yes — CVE-2025-38570 has been patched. Fixed versions include 6.15.10, 6.16.1 and 6.17. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38570 actively exploited?

No — CVE-2025-38570 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →