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NTAP-20260617-0006 — CVE-2026-34183 OpenSSL Vulnerability in NetApp Products

Published 2026-06-17 · Updated 2026-09-07 · Status: Interim · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20260617-0006 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

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

CVEs in this advisory

CVE-2026-34183 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2026-34183 — Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.

Impact

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

Affected products

Active IQ Unified Manager for VMware vSphere
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)
FAS/AFF BIOS - A900/9500
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.