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NTAP-20260617-0013 — CVE-2026-42766 OpenSSL Vulnerability in NetApp Products

Published 2026-06-17 · Updated 2026-10-07 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.9 · ONTAP affected: Yes

Official advisory: NTAP-20260617-0013 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · NetApp Console / BlueXP · SolidFire / NetApp HCI · ONTAP · Brocade SAN firmware · Other NetApp products | ONTAP-relevant | highest CVSS: 5.9

CVEs in this advisory

CVE-2026-42766 — MEDIUM · CVSS 5.9 · site index

What the CVE records say

CVE-2026-42766 — Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption. Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service. The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as OPTIONAL in the ASN.1 specification and may therefore be absent in specially crafted inputs. During the password-based CMS decryption the OpenSSL CMS implementation dereferences this field without first checking whether it was present. An attacker who supplies such a CMS message to an application performing password-based CMS decryption can trigger an application crash, leading to a Denial of Service. Applications that process password-encrypted CMS messages may be affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

Impact

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

Affected products

Active IQ Unified Manager for Linux
Active IQ Unified Manager for VMware vSphere
NetApp Console Agent Container (adc)
NetApp Console Agent Container (cbs-backend)
NetApp HCI Baseboard Management Controller (BMC) - H610S
ONTAP Select Deploy administration utility
Brocade Fabric Operating System Firmware
Brocade SAN Navigator (SANnav)
Cloud Volumes ONTAP Mediator
Global File Cache
NetApp Console Agent Container (alert-service-client)
NetApp Console Agent Container (alertmanager)

References

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.