Security readout for executives and security teams
Plain-English summary
CVE-2021-26994 affects older NetApp Clustered Data ONTAP releases. The public description says a single workload could trigger a denial of service on a cluster node. For executives, this is primarily an availability risk to storage infrastructure, not a disclosed data theft issue in the provided sources.
Executive priority
Handle as a near-term storage availability risk. Prioritize remediation for critical clusters, but do not describe it as actively exploited based on the provided evidence.
Technical view
Clustered Data ONTAP versions before 9.7P13 and 9.8P3 are listed as affected. The documented impact is denial of service on a cluster node caused by single workloads. The provided bundle does not include CVSS, CWE, root cause, authentication requirements, or technical trigger details.
Likely exposure
Organizations running NetApp Clustered Data ONTAP earlier than 9.7P13 or 9.8P3 may be exposed. Exposure is most relevant where affected clusters support business-critical workloads or have limited redundancy for node-level disruption.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not marked in CISA KEV. No exploit mechanics are provided. Treat this as a validated vendor-disclosed availability issue with incomplete public technical detail.
Researcher notes
Public data is sparse. The sources identify affected versions and DoS impact, but omit CVSS, CWE, attack prerequisites, and root cause. Avoid assumptions beyond NetApp Clustered Data ONTAP before 9.7P13 and 9.8P3.
Mitigation direction
- Inventory all Clustered Data ONTAP versions in production and disaster recovery environments.
- Upgrade affected systems to 9.7P13, 9.8P3, or later vendor-supported releases.
- Review the NetApp advisory for any environment-specific guidance or superseding fixes.
- Prioritize clusters supporting critical business services or low-redundancy workloads.
Validation and detection
- Compare each cluster version against the affected range: prior to 9.7P13 and 9.8P3.
- Confirm patched clusters report 9.7P13, 9.8P3, or a later supported release.
- Review storage monitoring for unexplained node DoS events around single workload activity.
- Document remaining affected clusters, owners, maintenance windows, and business impact.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-26994 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://security.netapp.com/advisory/NTAP-20210601-0001/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.