What is CVE-2025-40171?

CVE-2025-40171 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, affecting Linux kernel versions from 5.15.150 onward and patched in 5.15.195, 6.1.156, 6.6.112 and others. CVE-2025-40171 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-40171?

CVE-2025-40171 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-40171?

Yes, CVE-2025-40171 has been patched. Fixed versions include 5.15.195, 6.1.156, 6.6.112 and others. If you are running Linux kernel 5.15.150 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-40171 actively exploited?

CVE-2025-40171 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-40171

High

In the Linux kernel, the following vulnerability has been resolved: nvmet-fc: move lsop put work to nvmet_fc_ls_req_op It’s possible for more than one async command to be in flight from __nvmet_fc_send_ls_req. For each command, a tgtport reference is taken. In the current code, only one put work item is queued at a time, which results in a leaked reference. To fix this, move the work item to the nvmet_fc_ls_req_op struct, which already tracks all resources related to the command.

Package Linux Kernel

Published 2025-11-12

Last modified 2026-07-30

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.15.150, 6.1.80, 6.6.19, 6.7.7, 6.8 and later are affected. Fixed in 5.15.195, 6.1.156, 6.6.112, 6.12.53, 6.17.3, 6.18 and their respective stable series.

Affected from

≥ 5.15.150 ≥ 6.1.80 ≥ 6.6.19 ≥ 6.7.7 ≥ 6.8

Fixed in

✓ 5.15.195 5.15.x ✓ 6.1.156 6.1.x ✓ 6.6.112 6.6.x ✓ 6.12.53 6.12.x ✓ 6.17.3 6.17.x ✓ 6.18

References

6 total

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2025-40171

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2025-11-12

Modified 2026-07-30

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-40171?

CVE-2025-40171 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . It affects Linux kernel versions from 5.15.150 onward and has been patched in 5.15.195, 6.1.156, 6.6.112 and others. CVE-2025-40171 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-40171?

CVE-2025-40171 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-40171?

Yes. CVE-2025-40171 has been patched. Fixed versions include 5.15.195, 6.1.156, 6.6.112 and others. If you are running Linux kernel 5.15.150 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-40171 actively exploited?

No. CVE-2025-40171 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.