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Data Ontap CVE-2021-26989

MEDIUM
2021-03-04 security-alert@netapp.com
Denial Of Service Data Ontap Netapp
6.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.1% exploitation probability (EPSS)

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AnalysisAI

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. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

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. Affected products include: Netapp Data Ontap. Version information: prior to 9.3.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score
1.1%
Top 37% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:netapp:data_ontap:9.3.0:-:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p1:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p10:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p11:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p12:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p13:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p14:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p15:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p16:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p17:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p18:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p19:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p2:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p20:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p3:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p4:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p5:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p6:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p7:*:*:*:*:*:*
cpe:2.3:o:netapp:data_ontap:9.3.0:p8:*:*:*:*:*:*
+ 38 more

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References

Advisories & patches
PATCH https://security.netapp.com/advisory/NTAP-20210303-0002

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