How severe is CVE-2021-26994?

CVE-2021-26994 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-26994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26994?

CVE-2021-26994 primarily affects Netapp Clustered Data Ontap. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-26994?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26994 published?

CVE-2021-26994 was published on 2021-06-04 and last updated on 2026-06-17.

CVE-2021-26994

CVE-2021-26994 is a medium-severity vulnerability in Netapp Clustered Data Ontap with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netapp Clustered Data Ontap
Published: 2021-06-04
Last modified: 2026-06-17

Description

Clustered Data ONTAP versions prior to 9.7P13 and 9.8P3 are susceptible to a vulnerability which could allow single workloads to cause a Denial of Service (DoS) on a cluster node.

Frequently asked questions

What is CVE-2021-26994?: Clustered Data ONTAP versions prior to 9.7P13 and 9.8P3 are susceptible to a vulnerability which could allow single workloads to cause a Denial of Service (DoS) on a cluster node.
How severe is CVE-2021-26994?: CVE-2021-26994 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-26994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26994?: CVE-2021-26994 primarily affects Netapp Clustered Data Ontap. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26994 published?: CVE-2021-26994 was published on 2021-06-04 and last updated on 2026-06-17.

References

https://security.netapp.com/advisory/NTAP-20210601-0001/

Affected products (5)

cpe:2.3:o:netapp:clustered_data_ontap:*:*:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:9.7:-:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:9.7:p12:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:9.7:rc1:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:9.8:-:*:*:*:*:*:*

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