What is CVE-2025-37873?

CVE-2025-37873 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.8 onward and patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37873 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37873?

CVE-2025-37873 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-2025-37873?

Yes, CVE-2025-37873 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37873 actively exploited?

CVE-2025-37873 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37873

Medium

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix missing ring index trim on error path Commit under Fixes converted tx_prod to be free running but missed masking it on the Tx error path. This crashes on error conditions, for example when DMA mapping fails.

Package Linux Kernel

Published 2025-05-09

Last modified 2025-11-12

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 6.8 and later are affected. Fixed in 6.12.25, 6.14.4, 6.15 and their respective stable series.

Affected from

≥ 6.8

Fixed in

✓ 6.12.25 6.12.x ✓ 6.14.4 6.14.x ✓ 6.15

References

The following references provide additional information about CVE-2025-37873 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/12f2d033fae957d84c2c0ce604d2a077e61fa2c0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/21e70f694bc0dcb40174b0940cc52a7769fc19e0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3742c55de00266fa7c8fd2c5d61a453d223a9cd1
Patch

Details

CVE ID CVE-2025-37873

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-09

Modified 2025-11-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37873?

CVE-2025-37873 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37873 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37873?

CVE-2025-37873 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-2025-37873?

Yes — CVE-2025-37873 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37873 actively exploited?

No — CVE-2025-37873 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.