What is CVE-2025-37870?

CVE-2025-37870 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.3 onward and patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37870 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37870?

CVE-2025-37870 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-2025-37870?

Yes, CVE-2025-37870 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37870 actively exploited?

CVE-2025-37870 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37870

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: prevent hang on link training fail [Why] When link training fails, the phy clock will be disabled. However, in enable_streams, it is assumed that link training succeeded and the mux selects the phy clock, causing a hang when a register write is made. [How] When enable_stream is hit, check if link training failed. If it did, fall back to the ref clock to avoid a hang and keep the system in a recoverable state.

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

Affected from

≥ 6.3

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-2025-37870 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/0363c03672cd3191f037905bf981eb523a3b71b1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/04bf4f2a497e9877c425c5124652e61fb8a1a0aa
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8058061ed9d6bc259d1e678607b07d259342c08f
Patch

Details

CVE ID CVE-2025-37870

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-2025-37870?

CVE-2025-37870 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.3 onward and has been patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37870 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37870?

CVE-2025-37870 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-2025-37870?

Yes — CVE-2025-37870 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37870 actively exploited?

No — CVE-2025-37870 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.