What is CVE-2025-37980?

CVE-2025-37980 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 3.13 onward and patched in 6.1.168, 6.6.88, 6.12.25 and others. CVE-2025-37980 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37980?

CVE-2025-37980 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-2025-37980?

Yes, CVE-2025-37980 has been patched. Fixed versions include 6.1.168, 6.6.88, 6.12.25 and others. If you are running Linux kernel 3.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37980 actively exploited?

CVE-2025-37980 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-2025-37980

Medium

In the Linux kernel, the following vulnerability has been resolved: block: fix resource leak in blk_register_queue() error path When registering a queue fails after blk_mq_sysfs_register() is successful but the function later encounters an error, we need to clean up the blk_mq_sysfs resources. Add the missing blk_mq_sysfs_unregister() call in the error path to properly clean up these resources and prevent a memory leak.

Package Linux Kernel

Published 2025-05-20

Last modified 2026-04-11

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-2025-37980 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 3.13 and later are affected. Fixed in 6.1.168, 6.6.88, 6.12.25, 6.14.4, 6.15 and their respective stable series.

Affected from

≥ 3.13

Fixed in

✓ 6.1.168 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-2025-37980 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/40f2eb9b531475dd01b683fdaf61ca3cfd03a51e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/41e43134ddda35949974be40520460a12dda3502
Patch
Kernel patch commit
https://git.kernel.org/stable/c/549cbbd14bbec12469ceb279b79c763c8a24224e
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2025-37980

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-20

Modified 2026-04-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37980?

CVE-2025-37980 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 3.13 onward and has been patched in 6.1.168, 6.6.88, 6.12.25 and others. CVE-2025-37980 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37980?

CVE-2025-37980 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-2025-37980?

Yes — CVE-2025-37980 has been patched. Fixed versions include 6.1.168, 6.6.88, 6.12.25 and others. If you are running Linux kernel 3.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37980 actively exploited?

No — CVE-2025-37980 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →