Remote Denial of Service Vulnerability in FreeBSD NVMe/TCP Target
CVE-2026-4652

7.5HIGH

Key Information:

Vendor

FreeBSD

Status
FreeBSD
Vendor
CVE Published:
26 March 2026

What is CVE-2026-4652?

A vulnerability exists in FreeBSD's NVMe/TCP target implementation where an attacker can trigger a kernel panic by sending a malformed or outdated CNTLID in a CONNECT command. This can lead to a remote Denial of Service condition, allowing unauthenticated clients with network access to incapacitate the target system. Administrators are advised to apply security updates to mitigate this risk and protect their systems from potential exploitation.

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Affected Version(s)

FreeBSD 15.0-RELEASE

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:07....
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nikolay Denev <ndenev@gmail.com>
JSON
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