What is CVE-2025-38719?

CVE-2025-38719 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Divide By Zero flaw (CWE-369), affecting Linux kernel versions from 6.13 onward and patched in 6.15.11, 6.16.2 and 6.17. CVE-2025-38719 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-38719?

CVE-2025-38719 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-2025-38719?

Yes, CVE-2025-38719 has been patched. Fixed versions include 6.15.11, 6.16.2 and 6.17. If you are running Linux kernel 6.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-38719 actively exploited?

CVE-2025-38719 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Divide By Zero (CWE-369)?

The product divides a value by zero, causing a crash or unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/369.html

CVE-2025-38719

Medium

In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fix the division by zero issue When the network port is down, the queue is released, and ring->len is 0. In debugfs, hbg_get_queue_used_num() will be called, which may lead to a division by zero issue. This patch adds a check, if ring->len is 0, hbg_get_queue_used_num() directly returns 0.

Package Linux Kernel

Published 2025-09-04

Last modified 2025-12-02

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

Weakness type

CWE-369

CVE-2025-38719 is a Divide By Zero vulnerability

What is Divide By Zero?

The product divides a value by zero, causing a crash or unexpected behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.13 and later are affected. Fixed in 6.15.11, 6.16.2, 6.17 and their respective stable series.

Affected from

≥ 6.13

Fixed in

✓ 6.15.11 6.15.x ✓ 6.16.2 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-38719 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/475e06113c615dafd44262d6d6bd37786f7f4206
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7004b26f0b64331143eb0b312e77a357a11427ce
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c945e1ad4f3b77166a3215dabc0c6c980d4a9c73
Patch

Details

CVE ID CVE-2025-38719

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-04

Modified 2025-12-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-38719?

CVE-2025-38719 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Divide By Zero flaw (CWE-369) . It affects Linux kernel versions from 6.13 onward and has been patched in 6.15.11, 6.16.2 and 6.17. CVE-2025-38719 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-38719?

CVE-2025-38719 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-2025-38719?

Yes — CVE-2025-38719 has been patched. Fixed versions include 6.15.11, 6.16.2 and 6.17. If you are running Linux kernel 6.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-38719 actively exploited?

No — CVE-2025-38719 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Divide By Zero (CWE-369)?

The product divides a value by zero, causing a crash or unexpected behaviour. View CWE-369 on MITRE CWE →