What is CVE-2025-39733?

CVE-2025-39733 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-09-07.

How severe is CVE-2025-39733?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2025-39733 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux

CVE-2025-39733

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.

EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 6b1d3c5f675cc794a015138b115afff172fb4c58, 6.15, 0
Linux Linux_kernel — versions 6.15

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2025-39733?: CVE-2025-39733 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-09-07.
How severe is CVE-2025-39733?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2025-39733 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.