What is CVE-2025-37956?

CVE-2025-37956 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15 onward and patched in 6.6.91, 6.12.29, 6.14.7 and others. CVE-2025-37956 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37956?

CVE-2025-37956 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-2025-37956?

Yes, CVE-2025-37956 has been patched. Fixed versions include 6.6.91, 6.12.29, 6.14.7 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37956 actively exploited?

CVE-2025-37956 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37956

Medium

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from d_alloc. This patch return the error when attempting to rename a file or directory with an empty new name string.

Package Linux Kernel

Published 2025-05-20

Last modified 2025-11-14

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

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 6.6.91, 6.12.29, 6.14.7, 6.15 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 6.6.91 6.6.x ✓ 6.12.29 6.12.x ✓ 6.14.7 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-37956 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/53e3e5babc0963a92d856a5ec0ce92c59f54bc12
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6ee551672c8cf36108b0cfba92ec0c7c28ac3439
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c57301e332cc413fe0a7294a90725f4e21e9549d
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2025-37956

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-20

Modified 2025-11-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37956?

CVE-2025-37956 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15 onward and has been patched in 6.6.91, 6.12.29, 6.14.7 and others. CVE-2025-37956 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37956?

CVE-2025-37956 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-2025-37956?

Yes — CVE-2025-37956 has been patched. Fixed versions include 6.6.91, 6.12.29, 6.14.7 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37956 actively exploited?

No — CVE-2025-37956 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.