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NTAP-20251121-0001 — CVE-2025-31133 Runc Vulnerability in NetApp Products

Published 2025-11-21 · Updated 2026-09-18 · Status: Interim · Exploitation: Public · Severity: HIGH 7.8 · ONTAP affected: Yes

Official advisory: NTAP-20251121-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Astra Control · ONTAP · NetApp Console / BlueXP · SolidFire / NetApp HCI | ONTAP-relevant | highest CVSS: 7.8

CVEs in this advisory

CVE-2025-31133 — HIGH · CVSS 7.8 · site index

What the CVE records say

CVE-2025-31133 — runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS).

Affected products

Astra Control Center
ONTAP tools for VMware vSphere 10
NetApp Console Agent
NetApp Console Agent OVA
NetApp SolidFire & HCI Management Node
NetApp SolidFire & HCI Storage Node (Element Software)

Official fixes

ONTAP tools for VMware vSphere 10 — vendor fix ↗

References

https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2 ↗

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.