← Vulnerability feed

Vulnerability record · CVE-2021-26989 · published 4 March 2021

CVE-2021-26989: Netapp data ontap vulnerability

NNetapp · Data Ontap

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.

6.5 CVSS 3.1 Medium EPSS 1.3% · top 31.1%
6.5CVSS 3.1 base score, v2 3.5
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security.netapp.com/advisory/NTAP-20210303-0002 PatchVendor Advisory
https://security.netapp.com/advisory/NTAP-20210303-0002 PatchVendor Advisory

Track CVE-2021-26989 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-3349Netapp data ontap permissions and access controls vulnerabilityMultiple unspecified vulnerabilities in NetApp Data ONTAP, as used on NetApp and IBM eServer platforms, allow remote attackers to execute arbitrary c…EPSS 3.4%9.8CVE-2015-7746Netapp data ontap improper authentication vulnerabilityNetApp Data ONTAP before 8.2.4, when operating in 7-Mode, allows remote attackers to bypass authentication and (1) obtain sensitive information from …EPSS 1.6%9.8CVE-2015-7705Ntp improper input validation vulnerabilityThe rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of …EPSS 12%9.8CVE-2015-7853Ntp classic buffer overflow vulnerabilityThe datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code o…EPSS 12%9.8CVE-2015-7871ntpd Crypto-NAK packets bypass authenticationntpd in NTP 4.2.x before 4.2.8p4 and 4.3.x before 4.3.77 mishandles Crypto-NAK packets, allowing remote attackers to bypass authentication. Because N…EPSS 82%analysed9.1CVE-2019-5502Netapp data ontap broken cryptographic algorithm vulnerabilitySMB in Data ONTAP operating in 7-Mode versions prior to 8.2.5P3 has weak cryptography which when exploited could lead to information disclosure or ad…EPSS 0.91%8.8CVE-2015-7849Ntp use after free vulnerabilityUse-after-free vulnerability in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to possibly execute arbit…EPSS 17%8.8CVE-2015-7854Ntp classic buffer overflow vulnerabilityBuffer overflow in the password management functionality in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to ca…EPSS 15%

Source: NIST National Vulnerability Database (record CVE-2021-26989), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.