What is CVE-2025-37775?

CVE-2025-37775 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 6.1.135, 6.6.88, 6.12.25 and others. CVE-2025-37775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37775?

CVE-2025-37775 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-2025-37775?

Yes, CVE-2025-37775 has been patched. Fixed versions include 6.1.135, 6.6.88, 6.12.25 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-2025-37775 actively exploited?

CVE-2025-37775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37775

Medium

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix the warning from __kernel_write_iter [ 2110.972290] ------------[ cut here ]------------ [ 2110.972301] WARNING: CPU: 3 PID: 735 at fs/read_write.c:599 __kernel_write_iter+0x21b/0x280 This patch doesn't allow writing to directory.

Package Linux Kernel

Published 2025-05-01

Last modified 2026-03-17

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 6.1.135, 6.6.88, 6.12.25, 6.14.4, 6.15 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 6.1.135 6.1.x ✓ 6.6.88 6.6.x ✓ 6.12.25 6.12.x ✓ 6.14.4 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-37775 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Third Party Advisory Mailing List
Kernel patch commit
https://git.kernel.org/stable/c/1ed343481ba6911178bc5ca7a51be319eafcc747
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2a879da5c34a1e5d971e815d5b30f27eb6d69efc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/44079e544c9f6e3e9fb43a16ddf8b08cf686d657
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2025-37775

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2026-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37775?

CVE-2025-37775 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 6.1.135, 6.6.88, 6.12.25 and others. CVE-2025-37775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37775?

CVE-2025-37775 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-2025-37775?

Yes — CVE-2025-37775 has been patched. Fixed versions include 6.1.135, 6.6.88, 6.12.25 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-2025-37775 actively exploited?

No — CVE-2025-37775 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.