What is CVE-2025-39733?

CVE-2025-39733 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.15 onward and patched in 6.15.10, 6.16.1 and 6.17. CVE-2025-39733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-39733?

CVE-2025-39733 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-2025-39733?

Yes, CVE-2025-39733 has been patched. Fixed versions include 6.15.10, 6.16.1 and 6.17. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-39733 actively exploited?

CVE-2025-39733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-39733

Medium

In the Linux kernel, the following vulnerability has been resolved: team: replace team lock with rtnl lock syszbot reports various ordering issues for lower instance locks and team lock. Switch to using rtnl lock for protecting team device, similar to bonding. Based on the patch by Tetsuo Handa.

Package Linux Kernel

Published 2025-09-07

Last modified 2025-11-25

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 6.15 and later are affected. Fixed in 6.15.10, 6.16.1, 6.17 and their respective stable series.

Affected from

≥ 6.15

Fixed in

✓ 6.15.10 6.15.x ✓ 6.16.1 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-39733 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/53edc761c9911f597b6d701e846f6e84f15eaa6d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/556a4337ba3e9a70e1e3a428e8465c3ea3c4aa41
Patch
Kernel patch commit
https://git.kernel.org/stable/c/bfb4fb77f9a8ce33ce357224569eae5564eec573
Patch

Details

CVE ID CVE-2025-39733

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-07

Modified 2025-11-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-39733?

CVE-2025-39733 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.15 onward and has been patched in 6.15.10, 6.16.1 and 6.17. CVE-2025-39733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-39733?

CVE-2025-39733 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-2025-39733?

Yes — CVE-2025-39733 has been patched. Fixed versions include 6.15.10, 6.16.1 and 6.17. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-39733 actively exploited?

No — CVE-2025-39733 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.