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NTAP-20221111-0003 — CVE-2021-4203 Linux Kernel Vulnerability in NetApp Products
Published 2022-11-11 · Updated 2026-06-08 · Status: Interim · Exploitation: Public · Severity: not scored · ONTAP affected: No — other NetApp product
Official advisory: NTAP-20221111-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.
Product family: Baseboard management controllers · Active IQ Unified Manager · Brocade SAN firmware · E-Series / SANtricity · SolidFire / NetApp HCI | other NetApp product
CVEs in this advisory
Impact
Successful exploitation of this vulnerability could lead to disclosure of sensitive information or Denial of Service (DoS). <br><br> Brocade Fabric OS: affected only in versions 9.1.1 and higher <br><br> FAS/AFF Baseboard Management Controller (BMC) - 8300/8700/A400 version 13.10 is Affected
Affected products
- AFF Baseboard Management Controller (BMC) - A700s
- Active IQ Unified Manager for VMware vSphere
- Brocade Fabric Operating System Firmware
- E-Series SANtricity OS Controller Software
- FAS/AFF Baseboard Management Controller (BMC) - 8300/8700/A400/C400
- NetApp HCI Baseboard Management Controller (BMC) - H300S/H500S/H700S/H410S
- NetApp HCI Baseboard Management Controller (BMC) - H410C
- NetApp HCI Compute Node (Bootstrap OS)
- NetApp SolidFire & HCI Management Node
- NetApp SolidFire & HCI Storage Node (Element Software)
Official fixes
- Active IQ Unified Manager for VMware vSphere — vendor fix ↗
- AFF Baseboard Management Controller (BMC) - A700s — vendor fix ↗
- E-Series SANtricity OS Controller Software — vendor fix ↗
- FAS/AFF Baseboard Management Controller (BMC) - 8300/8700/A400/C400 — vendor fix ↗
References
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=35306eb23814 ↗
- https://lore.kernel.org/netdev/20210929225750.2548112-1-eric.dumazet@gmail.com/T/ ↗
What to do
- Compare your installed product and version against the affected list above and the official advisory's affected-versions table.
- Apply the fixed release named in the official advisory, or the documented workaround if no fix ships yet.
- Limit management-plane exposure (BMC/management interfaces, web UIs, SNMP) until patched.
- Track follow-ups in the site CVE index and the security RSS feed.
Related reading
- Site CVE index — every CVE we track, split by year
- Security hub — recent NetApp advisories and what changed
- Security hardening baseline — applies to NetApp management planes generally
- Every NetApp advisory published in 2022