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NTAP-20260116-0017 — CVE-2025-27558 Linux Kernel Vulnerability in NetApp Products

Published 2026-01-16 · Updated 2026-07-08 · Status: Interim · Exploitation: Public · Severity: CRITICAL 9.1 · ONTAP affected: Yes

Official advisory: NTAP-20260116-0017 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · ONTAP · NetApp Console / BlueXP | ONTAP-relevant | highest CVSS: 9.1

CVEs in this advisory

CVE-2025-27558 — CRITICAL · CVSS 9.1 · site index

What the CVE records say

CVE-2025-27558 — IEEE P802.11-REVme D1.1 through D7.0 allows FragAttacks against mesh networks. In mesh networks using Wi-Fi Protected Access (WPA, WPA2, or WPA3) or Wired Equivalent Privacy (WEP), an adversary can exploit this vulnerability to inject arbitrary frames towards devices that support receiving non-SSP A-MSDU frames. NOTE: this issue exists because of an incorrect fix for CVE-2020-24588. P802.11-REVme, as of early 2025, is a planned release of the 802.11 standard.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information or addition or modification of data.

Affected products

Active IQ Unified Manager for VMware vSphere
ONTAP Select Deploy administration utility
NetApp Console Agent OVA

References

https://nvd.nist.gov/vuln/detail/CVE-2025-27558 ↗

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.