CVE-2026-4652: Freebsd

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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 unauthenticated Denial of Service condition on the affected machine.

Affected products

• Freebsd Freebsd: version 15.0 only

Published 2026-03-26. Last modified 2026-06-17.