CVE-2021-26989

CVE-2021-26989 is a medium-severity vulnerability in Netapp 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

Description

Clustered Data ONTAP versions prior to 9.3P21, 9.5P16, 9.6P12, 9.7P9 and 9.8 are susceptible to a vulnerability which could allow a remote authenticated attacker to cause a Denial of Service (DoS) on clustered Data ONTAP configured for SMB access.

Frequently asked questions

What is CVE-2021-26989?
Clustered Data ONTAP versions prior to 9.3P21, 9.5P16, 9.6P12, 9.7P9 and 9.8 are susceptible to a vulnerability which could allow a remote authenticated attacker to cause a Denial of Service (DoS) on clustered Data ONTAP configured for SMB access.
How severe is CVE-2021-26989?
CVE-2021-26989 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-2021-26989 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26989?
CVE-2021-26989 primarily affects Netapp Data Ontap. In total, 58 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26989?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26989 published?
CVE-2021-26989 was published on 2021-03-04 and last updated on 2026-06-17.

References

Affected products (58)

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