What is CVE-2025-37836?

CVE-2025-37836 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.10 onward and patched in 5.10.237, 5.15.181, 6.1.136 and others. CVE-2025-37836 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37836?

CVE-2025-37836 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-2025-37836?

Yes, CVE-2025-37836 has been patched. Fixed versions include 5.10.237, 5.15.181, 6.1.136 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37836 actively exploited?

CVE-2025-37836 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37836

Medium

In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reference leak in pci_register_host_bridge() If device_register() fails, call put_device() to give up the reference to avoid a memory leak, per the comment at device_register(). Found by code review. [bhelgaas: squash Dan Carpenter's double free fix from https://lore.kernel.org/r/[email protected]]

Package Linux Kernel

Published 2025-05-09

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 4.10 and later are affected. Fixed in 5.10.237, 5.15.181, 6.1.136, 6.6.89, 6.12.24, 6.13.12, 6.14.3, 6.15 and their respective stable series.

Affected from

≥ 4.10

Fixed in

✓ 5.10.237 5.10.x ✓ 5.15.181 5.15.x ✓ 6.1.136 6.1.x ✓ 6.6.89 6.6.x ✓ 6.12.24 6.12.x ✓ 6.13.12 6.13.x ✓ 6.14.3 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-37836 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/msg00030.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Mailing List Third Party Advisory
Kernel patch commit
https://git.kernel.org/stable/c/3297497ad2246eb9243849bfbbc57a0dea97d76e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/804443c1f27883926de94c849d91f5b7d7d696e9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9707d0c932f41006a2701afc926b232b50e356b4
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2025-37836

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-09

Modified 2025-11-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37836?

CVE-2025-37836 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.10 onward and has been patched in 5.10.237, 5.15.181, 6.1.136 and others. CVE-2025-37836 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37836?

CVE-2025-37836 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-2025-37836?

Yes — CVE-2025-37836 has been patched. Fixed versions include 5.10.237, 5.15.181, 6.1.136 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37836 actively exploited?

No — CVE-2025-37836 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.