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.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.001 (3.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-39733: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

  • Linux — versions 6b1d3c5f675cc794a015138b115afff172fb4c58, 6.15, 0
  • Linux Kernel — versions 6.15

Public proof-of-concept exploits

References

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.