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NTAP-20260617-0005 — CVE-2026-42765 OpenSSL Vulnerability in NetApp Products

Published 2026-06-17 · Updated 2026-08-19 · Status: Interim · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20260617-0005 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: SolidFire / NetApp HCI · NetApp Console / BlueXP · ONTAP · Brocade SAN firmware · Other NetApp products | ONTAP-relevant | highest CVSS: 7.5

CVEs in this advisory

CVE-2026-42765 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2026-42765 — Issue summary: When a partial-chain certificate verification is enabled together with OCSP response checking for the whole chain, a NULL dereference will happen if the verified chain does not have a self-signed trusted anchor, crashing the process. Impact summary: A NULL pointer dereference can trigger a crash which leads to a Denial of Service for an application. When performing OCSP response checking for certificates in the verification chain, the code always tries to access the next certificate as the issuer. There is a check for a self-signed certificate. However with the partial chain verification enabled when the chain does not have a self-signed trusted anchor, the issuer will be NULL for the last certificate in the chain. A NULL pointer dereference then happens. This issue affects only applications which enable both OCSP verification of the certificate chain (X509_V_FLAG_OCSP_RESP_CHECK_ALL) and partial chain verification (X509_V_FLAG_PARTIAL_CHAIN) in the certificate verification. Both flags are disabled by default. For that reason, we have assigned Low severity to the issue. No FIPS modules are 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

Management Services for Element Software and NetApp HCI
NetApp Console Agent Container (adc)
NetApp Console Agent Container (cbs)
NetApp Console Agent Container (cbs-backend)
ONTAP Select Deploy administration utility
Brocade Fabric Operating System Firmware
Brocade SAN Navigator (SANnav)
Global File Cache
NetApp Console Agent Container (alert-service-client)
NetApp Console Agent Container (alertmanager)
NetApp Console Agent Container (cadvisor)
NetApp Console Agent Container (certificates)

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.