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NTAP-20260206-0002 — CVE-2023-32253 Linux Kernel Vulnerability in NetApp Products

Published 2026-02-06 · Updated 2026-03-05 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.9 · ONTAP affected: Yes

Official advisory: NTAP-20260206-0002 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: SolidFire / NetApp HCI · ONTAP | ONTAP-relevant | highest CVSS: 5.9

CVEs in this advisory

CVE-2023-32253 — MEDIUM · CVSS 5.9 · site index

What the CVE records say

CVE-2023-32253 — A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

Affected products

NetApp HCI Baseboard Management Controller (BMC) - H610S
ONTAP tools for VMware vSphere 9
ONTAP tools for VMware vSphere 10

References

https://nvd.nist.gov/vuln/detail/CVE-2023-32253 ↗

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.