What is CVE-2025-38501?

CVE-2025-38501 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400), affecting Linux kernel versions from 5.15 onward and patched in 6.1.148, 6.6.102, 6.12.42 and others. CVE-2025-38501 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38501?

CVE-2025-38501 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-38501?

Yes, CVE-2025-38501 has been patched. Fixed versions include 6.1.148, 6.6.102, 6.12.42 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38501 actively exploited?

CVE-2025-38501 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2025-38501

High

In the Linux kernel, the following vulnerability has been resolved: ksmbd: limit repeated connections from clients with the same IP Repeated connections from clients with the same IP address may exhaust the max connections and prevent other normal client connections. This patch limit repeated connections from clients with the same IP.

Package Linux Kernel

Published 2025-08-16

Last modified 2026-03-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-400

CVE-2025-38501 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1, 6.17 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 6.1.148 6.1.x ✓ 6.6.102 6.6.x ✓ 6.12.42 6.12.x ✓ 6.15.10 6.15.x ✓ 6.16.1 6.16.x ✓ 6.17

References

9 total

Kernel Git
https://git.kernel.org/stable/c/6073afe64510c302b7a0683a01e32c012eff715d

Patch
Kernel Git
https://git.kernel.org/stable/c/7e5d91d3e6c62a9755b36f29c35288f06c3cd86b

Patch
Kernel Git
https://git.kernel.org/stable/c/cb092fc3a62972a4aa47c9fe356c2c6a01cd840b

Patch
Kernel Git
https://git.kernel.org/stable/c/e6bb9193974059ddbb0ce7763fa3882bd60d4dc3

Patch
Kernel Git
https://git.kernel.org/stable/c/f1ce9258bcbce2491f9f71f7882b6eed0b33ec65

Patch

Showing 5 of 9 references View all on NVD

Details

CVE ID CVE-2025-38501

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2025-08-16

Modified 2026-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38501?

CVE-2025-38501 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . It affects Linux kernel versions from 5.15 onward and has been patched in 6.1.148, 6.6.102, 6.12.42 and others. CVE-2025-38501 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38501?

CVE-2025-38501 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-38501?

Yes. CVE-2025-38501 has been patched. Fixed versions include 6.1.148, 6.6.102, 6.12.42 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38501 actively exploited?

No. CVE-2025-38501 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.