What is CVE-2025-38270?

CVE-2025-38270 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.10 onward and patched in 6.12.34, 6.15.3 and 6.16. CVE-2025-38270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38270?

CVE-2025-38270 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-2025-38270?

Yes, CVE-2025-38270 has been patched. Fixed versions include 6.12.34, 6.15.3 and 6.16. 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-2025-38270 actively exploited?

CVE-2025-38270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-38270

High

In the Linux kernel, the following vulnerability has been resolved: net: drv: netdevsim: don't napi_complete() from netpoll netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done(): WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710 This is presumably after netpoll stole the SCHED bit prematurely.

Package Linux Kernel

Published 2025-07-10

Last modified 2025-11-20

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

Affected versions

Linux kernel versions 6.10 and later are affected. Fixed in 6.12.34, 6.15.3, 6.16 and their respective stable series.

Affected from

≥ 6.10

Fixed in

✓ 6.12.34 6.12.x ✓ 6.15.3 6.15.x ✓ 6.16

References

The following references provide additional information about CVE-2025-38270 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/1264971017b4d7141352a7fe29021bdfce5d885d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6837dd877270c57689bd866de9f3de14172c2439
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a8ff2e362d901200a1075c3ca9c56d9c7bbef389
Patch

Details

CVE ID CVE-2025-38270

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-07-10

Modified 2025-11-20

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38270?

CVE-2025-38270 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.34, 6.15.3 and 6.16. CVE-2025-38270 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38270?

CVE-2025-38270 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-2025-38270?

Yes — CVE-2025-38270 has been patched. Fixed versions include 6.12.34, 6.15.3 and 6.16. 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-2025-38270 actively exploited?

No — CVE-2025-38270 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.