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NTAP-20260924-0021 — CVE-2026-72522 Libexpat Vulnerability in NetApp Products

Published 2026-09-24 · Updated 2026-09-24 · Status: Interim · Exploitation: Public · Severity: MEDIUM 6.2 · ONTAP affected: Yes

Official advisory: NTAP-20260924-0021 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 · Active IQ Unified Manager · ONTAP · NetApp Console / BlueXP · SnapCenter | ONTAP-relevant | highest CVSS: 6.2

CVEs in this advisory

CVE-2026-72522 — MEDIUM · CVSS 6.2 · site index

What the CVE records say

CVE-2026-72522 — libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.

Impact

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

Affected products

NetApp HCI Baseboard Management Controller (BMC) - H610S
NetApp LOADER 8.x
Active IQ Unified Manager for VMware vSphere
Cloud Volumes ONTAP Mediator
FAS/AFF BIOS - A900/9500
NetApp Console Agent Container (docker_occm)
NetApp Console Agent OVA
NetApp SolidFire & HCI Management Node
NetApp SolidFire & HCI Storage Node (Element Software)
NetApp XCP NFS
ONTAP tools for VMware vSphere 10
SAN Host Utilities for Windows

References

https://github.com/advisories/GHSA-v867-w97p-3vx2 ↗

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.