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NTAP-20261006-0010 — CVE-2026-42772 OpenSSL Vulnerability in NetApp Products

Published 2026-10-06 · Updated 2026-10-06 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.3 · ONTAP affected: Yes

Official advisory: NTAP-20261006-0010 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: SolidFire / NetApp HCI · Other NetApp products · Baseboard management controllers · Active IQ Unified Manager · Brocade SAN firmware · ONTAP · NetApp Console / BlueXP · SnapCenter | ONTAP-relevant | highest CVSS: 5.3

CVEs in this advisory

CVE-2026-42772 — MEDIUM · CVSS 5.3 · site index

What the CVE records say

CVE-2026-42772 — Issue summary: The QUIC stream reassembly algorithm performance deteriorates progressively as packets are arriving out of order. The worst case has a quadratic complexity proportional to the number of stream frames kept in the buffer for the received stream data. Impact summary: A remote QUIC peer that completes the handshake can create a connection-scoped CPU pressure and potentially a Denial of Service using compliant STREAM frames inside the advertised receive window, with low attacker bandwidth. CWE: CWE-407: Inefficient Algorithmic Complexity Description: OpenSSL manages received QUIC stream fragments using a doubly-linked list. While it optimizes for append operations (at the end of the list), it falls back to a head-to-tail linear search for any fragment that does not immediately follow the current `tail`. By manipulating the sequence of offsets, an attacker can force the server to perform O(n^2) operations, consuming excessive CPU time for the QUIC process. FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary.

Impact

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

Affected products

NetApp HCI Baseboard Management Controller (BMC) - H610S
AFF BIOS - A700s
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
Active IQ Config Advisor
Active IQ OneCollect
Brocade Fabric Operating System Firmware
Brocade SAN Navigator (SANnav)
Cloud Volumes ONTAP Mediator
FAS/AFF BIOS - 8300/8700/A400/C400
FAS/AFF BIOS - A320

References

https://openssl-library.org/news/secadv/20260929.txt ↗

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.