What is CVE-2025-39811?

CVE-2025-39811 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 6.8 onward and patched in 6.12.45, 6.16.5 and 6.17. CVE-2025-39811 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-39811?

CVE-2025-39811 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-2025-39811?

Yes, CVE-2025-39811 has been patched. Fixed versions include 6.12.45, 6.16.5 and 6.17. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-39811 actively exploited?

CVE-2025-39811 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2025-39811

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: Clear the scratch_pt pointer on error Avoid triggering a dereference of an error pointer on cleanup in xe_vm_free_scratch() by clearing any scratch_pt error pointer. (cherry picked from commit 358ee50ab565f3c8ea32480e9d03127a81ba32f8)

Package Linux Kernel

Published 2025-09-16

Last modified 2026-01-14

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

Weakness type

CWE-476

CVE-2025-39811 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.8 and later are affected. Fixed in 6.12.45, 6.16.5, 6.17 and their respective stable series.

Affected from

≥ 6.8

Fixed in

✓ 6.12.45 6.12.x ✓ 6.16.5 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-39811 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/2b55ddf36229e0278c956215784ab1feeff510aa
Patch
Kernel patch commit
https://git.kernel.org/stable/c/84603ed1d73ebb8de856dc11f4f5d3541c48f7a2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c8277d229c7840e8090d4704e50f2ca014d194c7
Patch

Details

CVE ID CVE-2025-39811

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-16

Modified 2026-01-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-39811?

CVE-2025-39811 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.45, 6.16.5 and 6.17. CVE-2025-39811 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-39811?

CVE-2025-39811 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-2025-39811?

Yes — CVE-2025-39811 has been patched. Fixed versions include 6.12.45, 6.16.5 and 6.17. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-39811 actively exploited?

No — CVE-2025-39811 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →