What is CVE-2026-4652?

CVE-2026-4652 is a high-severity vulnerability in Freebsd, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-03-26.

How severe is CVE-2026-4652?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Freebsd

CVE-2026-4652

On a system exposing an NVMe/TCP target, a remote client can trigger a kernel panic by sending a CONNECT command for an I/O queue with a bogus or stale CNTLID. An attacker with network access to the NVMe/TCP target can trigger an unauthen…

EPSS: 0.000 (8.1th 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

Freebsd — versions 15.0, 15.0-RELEASE

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

secteam@freebsd.org (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-4652?: CVE-2026-4652 is a high-severity vulnerability in Freebsd, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-03-26.
How severe is CVE-2026-4652?: High severity. CVSS v3 base score is 7.5 out of 10.