CVE-2026-4652 json
Remote denial of service via null pointer dereference
published 2026-03-26 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-16130
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- FreeBSD FreeBSD p5
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- FreeBSD FreeBSD
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
security.freebsd.org
/advisories/FreeBSD-SA-26:07.nvmf.asc
vendor-advisory
Sources
- CVE List CVE-2026-4652
- NVD CVE-2026-4652
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