What is CVE-2025-39679?

CVE-2025-39679 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.6 onward and patched in 6.6.103, 6.12.44, 6.16.4 and others. CVE-2025-39679 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-39679?

CVE-2025-39679 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-2025-39679?

Yes, CVE-2025-39679 has been patched. Fixed versions include 6.6.103, 6.12.44, 6.16.4 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-39679 actively exploited?

CVE-2025-39679 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2025-39679

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/nvif: Fix potential memory leak in nvif_vmm_ctor(). When the nvif_vmm_type is invalid, we will return error directly without freeing the args in nvif_vmm_ctor(), which leading a memory leak. Fix it by setting the ret -EINVAL and goto done.

Package Linux Kernel

Published 2025-09-05

Last modified 2025-11-25

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-401

CVE-2025-39679 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.6 and later are affected. Fixed in 6.6.103, 6.12.44, 6.16.4, 6.17 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.103 6.6.x ✓ 6.12.44 6.12.x ✓ 6.16.4 6.16.x ✓ 6.17

References

4 total

Kernel Git
https://git.kernel.org/stable/c/72553fe19317fe93cb8591c83095c446bc7fe292

Patch
Kernel Git
https://git.kernel.org/stable/c/7d9110e3b35d08832661da1a1fc2d24455981a04

Patch
Kernel Git
https://git.kernel.org/stable/c/bb8aeaa3191b617c6faf8ae937252e059673b7ea

Patch
Kernel Git
https://git.kernel.org/stable/c/cabcb52d76d3d42f16c344a96e098dd9d18602f8

Patch

Details

CVE ID CVE-2025-39679

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-05

Modified 2025-11-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-39679?

CVE-2025-39679 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.103, 6.12.44, 6.16.4 and others. CVE-2025-39679 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-39679?

CVE-2025-39679 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-2025-39679?

Yes. CVE-2025-39679 has been patched. Fixed versions include 6.6.103, 6.12.44, 6.16.4 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-39679 actively exploited?

No. CVE-2025-39679 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.