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NTAP-20230309-0003 — CVE-2023-25136 OpenSSH Vulnerability in NetApp Products

Published 2023-03-09 · Updated 2025-04-29 · Status: Final · Exploitation: Public · Severity: MEDIUM 6.5 · ONTAP affected: Yes

Official advisory: NTAP-20230309-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Baseboard management controllers · ONTAP | ONTAP-relevant | highest CVSS: 6.5

CVEs in this advisory

CVE-2023-25136 — MEDIUM · CVSS 6.5 · site index

What the CVE records say

CVE-2023-25136 — OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."

Impact

Successful exploitation of this vulnerability could lead to addition or modification of data or Denial of Service (DoS).

Affected products

FAS/AFF Baseboard Management Controller (BMC) - A250/500f/C250
ONTAP Select Deploy administration utility

Official fixes

FAS/AFF Baseboard Management Controller (BMC) - A250/500f/C250 — vendor fix ↗
ONTAP Select Deploy administration utility — vendor fix ↗

References

https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig ↗

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.