Vulnerability in Linux

CVE-2025-40187

In the Linux kernel, the following vulnerability has been resolved: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() If new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0 and sctp_ulpevent_make_authkey() returns 0, then the variable ai_ev remains zero and the zero will be dereferenced in the sctp_ulpevent_free() function.

EPSS: 0.002 (11.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b, 4.17, 0

References

Frequently asked questions

What is CVE-2025-40187?
CVE-2025-40187 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2025-11-12.
How severe is CVE-2025-40187?
High severity. CVSS v3 base score is 7.5 out of 10.