CVE-2021-26988

Clustered Data ONTAP versions prior to 9.3P21, 9.5P16, 9.6P12, 9.7P8 and 9.8 are susceptible to a vulnerability which could allow unauthorized tenant users to discover information related to converting a 7-Mode directory to Cluster-mode such as Storage Virtual Machine (SVM) names, volume names, directory paths and Job IDs.

Published: 2021-03-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-26988 is rated Low Risk (24.8/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.38%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-26988

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.14% 0.38% +0.25%
2 2025-03-30 0.15% 0.14% -0.02%
3 2025-03-29 — 0.15% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-26988

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 3.1 LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.1 1.4 [email protected]
2.7 2.0 LOW
AV:A/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 5.1 2.9 [email protected]

Weakness enumeration for CVE-2021-26988

Affected software / configurations for CVE-2021-26988

Vendor Product Version Raw CPE
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:-:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p1:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p10:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p11:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p12:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p13:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p14:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p15:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p16:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p17:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p18:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p19:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p2:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p20:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p3:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p4:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p5:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p6:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p7:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p8:*:*:*:*:*:*
netapp data_ontap 9.3.0 cpe:2.3:o:netapp:data_ontap:9.3.0:p9:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:-:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p1:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p10:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p11:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p12:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p13:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p14:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p15:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p2:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p3:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p4:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p5:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p6:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p7:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p8:*:*:*:*:*:*
netapp data_ontap 9.5.0 cpe:2.3:o:netapp:data_ontap:9.5.0:p9:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:-:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p1:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p10:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p11:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p2:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p3:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p4:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p5:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p6:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p7:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p8:*:*:*:*:*:*
netapp data_ontap 9.6.0 cpe:2.3:o:netapp:data_ontap:9.6.0:p9:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:-:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p1:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p2:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p3:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p4:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p5:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p6:*:*:*:*:*:*
netapp data_ontap 9.7.0 cpe:2.3:o:netapp:data_ontap:9.7.0:p7:*:*:*:*:*:*
netapp data_ontap 9.8.0 cpe:2.3:o:netapp:data_ontap:9.8.0:-:*:*:*:*:*:*

References for CVE-2021-26988

cvelogic Threat Intelligence