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NTAP-20250228-0002 — CVE-2025-26466 OpenSSH Vulnerability in NetApp Products

Published 2025-02-28 · Updated 2026-08-04 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.9 · ONTAP affected: Yes

Official advisory: NTAP-20250228-0002 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

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

CVEs in this advisory

CVE-2025-26466 — MEDIUM · CVSS 5.9 · site index

What the CVE records say

CVE-2025-26466 — A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS). <br><br> ONTAP 9: <br> Affected only in version 9.16.1.

Affected products

AFF Baseboard Management Controller (BMC) - A700s
AFF/ASA/FAS Baseboard Management Controller (BMC) - A1K/A90/A70/C80/FAS90/FAS70
AFF/ASA/FAS Baseboard Management Controller (BMC) - A50/A30/A20/C60/C30/FAS50
FAS/AFF Baseboard Management Controller (BMC) - 8300/8700/A400/C400
FAS/AFF Baseboard Management Controller (BMC) - A250/500f/C250
FAS/AFF Baseboard Management Controller (BMC) - A800/C800
FAS/AFF Baseboard Management Controller (BMC) - A900/9500
FAS/AFF Baseboard Management Controller (BMC) - C190/A150/A220/FAS2720/FAS2750
FAS/AFF Baseboard Management Controller (BMC) - FAS2820
NetApp HCI Compute Node (Bootstrap OS)
ONTAP 9
ONTAP tools for VMware vSphere 10

Official fixes

AFF/ASA/FAS Baseboard Management Controller (BMC) - A1K/A90/A70/C80/FAS90/FAS70 — vendor fix ↗
FAS/AFF Baseboard Management Controller (BMC) - A800/C800 — vendor fix ↗
FAS/AFF Baseboard Management Controller (BMC) - C190/A150/A220/FAS2720/FAS2750 — vendor fix ↗
FAS/AFF Baseboard Management Controller (BMC) - FAS2820 — vendor fix ↗
AFF/ASA/FAS Baseboard Management Controller (BMC) - A50/A30/A20/C60/C30/FAS50 — vendor fix ↗
ONTAP 9 — vendor fix ↗
ONTAP 9 — vendor fix ↗

References

https://www.openssh.com/releasenotes.html#9.9p2 ↗

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.