What is CVE-2025-37791?

CVE-2025-37791 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.11 onward and patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37791 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-37791?

CVE-2025-37791 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-2025-37791?

Yes, CVE-2025-37791 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-37791 actively exploited?

CVE-2025-37791 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-37791

Medium

In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll() rpl is passed as a pointer to ethtool_cmis_module_poll(), so the correct size of rpl is sizeof(*rpl) which should be just 1 byte. Using the pointer size instead can cause stack corruption: Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ethtool_cmis_wait_for_cond+0xf4/0x100 CPU: 72 UID: 0 PID: 4440 Comm: kworker/72:2 Kdump: loaded Tainted: G OE 6.11.0 #24 Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: Dell Inc. PowerEdge R760/04GWWM, BIOS 1.6.6 09/20/2023 Workqueue: events module_flash_fw_work Call Trace: <TASK> panic+0x339/0x360 ? ethtool_cmis_wait_for_cond+0xf4/0x100 ? __pfx_status_success+0x10/0x10 ? __pfx_status_fail+0x10/0x10 __stack_chk_fail+0x10/0x10 ethtool_cmis_wait_for_cond+0xf4/0x100 ethtool_cmis_cdb_execute_cmd+0x1fc/0x330 ? __pfx_status_fail+0x10/0x10 cmis_cdb_module_features_get+0x6d/0xd0 ethtool_cmis_cdb_init+0x8a/0xd0 ethtool_cmis_fw_update+0x46/0x1d0 module_flash_fw_work+0x17/0xa0 process_one_work+0x179/0x390 worker_thread+0x239/0x340 ? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>

Package Linux Kernel

Published 2025-05-01

Last modified 2026-03-17

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

Affected from

≥ 6.11

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-2025-37791 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/61765e1b417a23371c3735e3cddf4ad9354ed2e9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7eb0a0072f966bb0b01d8b7d529d9743a7187bd1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f3fdd4fba16c74697d8bc730b82fb7c1eff7fab3
Patch

Details

CVE ID CVE-2025-37791

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2026-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-37791?

CVE-2025-37791 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.11 onward and has been patched in 6.12.25, 6.14.4 and 6.15. CVE-2025-37791 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-37791?

CVE-2025-37791 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-2025-37791?

Yes — CVE-2025-37791 has been patched. Fixed versions include 6.12.25, 6.14.4 and 6.15. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-37791 actively exploited?

No — CVE-2025-37791 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.